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181 World Cities That Start With O – All Popular Places

    World Cities That Start With O

    Around the world, there are a wide variety of cities that starts with O, each with its unique features. Some of the most famous cities that start with the letter O include Osaka, Ordos, Omdurman, Omsk, Ouagadougou and Odessa. Others, such as Ottawa and Oyo are known for their modern architecture and hospitality. No matter what kind of city you are looking for that start with the letter O, there is sure to be one that suits your needs in this list.

    Places and Cities That Start With “O” Around The World

    Oakland, California

    Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port city, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the San Francisco Bay Area, the eighth most populated city in California, and the 45th largest city in the United States. With a population of 419,267 as of 2017, it serves as a trade center for the San Francisco Bay Area; its Port of Oakland is the busiest port in the San Francisco Bay, the entirety of Northern California, and the fifth busiest in the United States of America.

    Oakland, California

    An act to incorporate the city was passed on May 4, 1852, and incorporation was later approved on March 25, 1854, which made Oakland a city. Oakland served as a major terminus for the transcontinental railroad, and its success led it to become the primary city of the East Bay region. It continued to grow in the 20th century with its busy port, shipyards, and a thriving automobile manufacturing industry.

    Omaha, Nebraska

    Omaha is the largest city in the state of Nebraska and the county seat of Douglas County. Omaha is located in the Midwestern United States on the Missouri River, about 10 miles (15 km) north of the mouth of the Platte River. The nation’s 40th-largest city, Omaha’s 2018 estimated population was 466,893.

    Omaha, Nebraska

    Orlando, Florida

    Orlando is a city in the U.S. state of Florida and the county seat of Orange County. Located in Central Florida, it is the center of the Orlando metropolitan area, which had a population of 2,509,831, according to U.S. Census Bureau figures released in July 2017. These figures make it the 23rd-largest metropolitan area in the United States, the sixth-largest metropolitan area in the Southern United States, and the third-largest metropolitan area in Florida. As of 2015, Orlando had an estimated city-proper population of 280,257, making it the 73rd-largest city in the United States, the fourth-largest city in Florida, and the state’s largest inland city.

    Orlando, Florida

    The City of Orlando is nicknamed “The City Beautiful,” and its symbol is the fountain at Lake Eola. Orlando is also known as “The Theme Park Capital of the World” and in 2014 its tourist attractions and events drew more than 62 million visitors. The Orlando International Airport (MCO) is the thirteenth-busiest airport in the United States and the 29th-busiest in the world. Buddy Dyer is Orlando’s mayor.

    Oxnard, California

    Oxnard is a city in Ventura County, California, United States. Located along the coast of Southern California, it is the most populous city in Ventura County and the 19th most populous city in California. It is also the most populous in Western Ventura County, and is considered the “preeminent city” of the county. The city’s population has consisted predominantly of Latino and White American residents.

    Oxnard, California

    As of the 2010 census, the city had a total population of 204,096, and is the most populous city in the Oxnard-Thousand Oaks-Ventura, CA Metropolitan Statistical Area, which is listed as one of the wealthiest regions in America and is home to numerous corporate.

    Osaka, Japan

    Osaka, Japan

    Osaka, Japan’s second-largest city, is a dynamic metropolis brimming with culture, history, and mouthwatering cuisine. Nicknamed the “Nation’s Kitchen,” Osaka is a foodie paradise, famous for its street food stalls and lively markets serving up delectable specialties like takoyaki (octopus balls), okonomiyaki (savory pancakes), and kitsune udon (noodles with fried tofu pouches).

    Beyond its culinary delights, Osaka boasts a rich heritage, evident in its ancient temples and shrines like the Shitenno-ji, one of Japan’s oldest Buddhist temples, and the Dotombori district, known for its vibrant nightlife and neon-lit canals. Kids will be amazed by the Universal Studios Japan theme park, featuring thrilling rides and immersive experiences based on popular anime and video games.

    Here are some fun facts about Osaka that you can share with your students:

    • Osaka Castle, a majestic symbol of the city, was once the center of power for powerful feudal lords.
    • Dotonbori, Osaka’s most famous district, is crossed by 12 bridges, each with its unique character.
    • The annual Tenjin Matsuri festival, held in July, features a spectacular procession of boats adorned with elaborate lanterns.
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    With its friendly locals, delicious food, and exciting attractions, Osaka is a fantastic city for families to explore and experience the best of Japanese culture.

    Ordos, China

    Ordos, a city in Inner Mongolia, China, might seem like an unlikely destination for families. However, this modern metropolis emerging from the Gobi Desert offers a unique blend of ancient history and futuristic innovation. Imagine towering skyscrapers contrasting with vast grasslands where dinosaurs once roamed.

    Ordos boasts impressive museums like the Ordos Museum, showcasing dinosaur fossils and artifacts from the Silk Road era. Kids will be enthralled by the Kangbashi district, a planned city featuring stunning modern architecture and eco-friendly initiatives. Families can enjoy outdoor activities like cycling on designated paths, picnicking in green spaces, and even horseback riding.

    Here are some interesting details about Ordos to share with your students:

    • Ordos is home to the Mausoleum of Genghis Khan, a grand complex honoring the legendary Mongol emperor.
    • The city is a leader in renewable energy, with wind farms and solar panels providing a significant portion of its power.
    • The Ordos International Camel Festival, held annually in December, features camel races, traditional music, and cultural performances.

    Ordos may not be your typical family vacation destination, but its unique blend of history, modernity, and stunning landscapes makes it a surprisingly enriching and memorable experience.

    Omdurman, Sudan


    Omdurman, located across the Nile River from Sudan’s capital, Khartoum, is a vibrant city steeped in history and culture. Home to a diverse population, Omdurman offers a glimpse into Sudanese life, traditions, and stunning scenery.

    Families can explore the bustling Souq Omdurman, one of Africa’s largest traditional markets, where vendors sell everything from spices and textiles to pottery and handcrafted souvenirs. Kids will be fascinated by the sight of camels laden with goods and the cacophony of bargaining voices.

    History buffs can visit the Khalifa House Museum, once the residence of the Mahdist leader Muhammad Ahmad, and the Beit al-Khalifa museum, showcasing artifacts from Sudan’s rich past. For a taste of local culture, families can enjoy a traditional Sudanese meal like ful medames (fava beans) or kisra (flatbread) while listening to Nubian music.

    Here are some interesting facts about Omdurman to share with your students:

    • Omdurman is the site of the famous Battle of Omdurman in 1898, a pivotal clash between British and Sudanese forces.
    • The city is home to numerous mosques, including the imposing Sheikh Hamad al-Nil mosque, a landmark on the Nile River.
    • Omdurman hosts vibrant celebrations throughout the year, including the Eid al-Fitr festival marking the end of Ramadan and the Moulid festival honoring the Prophet Muhammad’s birthday.

    Omdurman offers a unique opportunity for families to experience the rich culture and traditions of Sudan. From bustling markets to historical sites and delicious local cuisine, Omdurman is a city that will leave a lasting impression.

    Omsk, Russia

    Omsk, Russia

    Omsk, nestled along the banks of the mighty Irtysh River, surprises visitors with its blend of historical grandeur and modern energy. As Siberia’s second-largest city, it boasts a rich cultural tapestry, evident in its ornate onion-domed churches, bustling markets, and lively art scene. Kids will be amazed by the towering Omsk State Transport Academy building, resembling a colossal steam locomotive, and the vibrant murals adorning many city walls.

    History buffs can delve into the fascinating past at the Dostoevsky Museum, housed in the writer’s former home, or explore the Fyodor Dostoyevsky State Literary Museum. Families seeking thrills can ride the world’s longest single-span suspension bridge at the Omsk Cableway, offering breathtaking views of the city and the river.

    Here are some intriguing facts about Omsk to share with your students:

    • Omsk was founded in 1716 as a military outpost and played a crucial role in Russia’s westward expansion.
    • The city’s population of over 1 million makes it a major economic and cultural hub in Siberia.
    • Omsk hosts the annual Siberian International Marathon, attracting runners from across the globe.

    With its unique blend of history, culture, and natural beauty, Omsk offers an unforgettable experience for families venturing off the beaten path in Russia.

    Odessa, Ukraine

    Odessa, gracing the shores of the Black Sea, is a vibrant port city pulsating with history, art, and sunshine. Nicknamed the “Pearl of the Black Sea,” Odessa charms visitors with its elegant boulevards, stunning opera house, and lively beaches. Kids will adore the playful dolphins at the Nemo Dolphinarium and the thrilling rides at the Luna Park amusement park.

    History comes alive at the Potemkin Stairs, immortalized in the classic film “Battleship Potemkin,” and the Odessa Catacombs, an extensive network of underground tunnels stretching for miles beneath the city. Foodies will relish the city’s delectable seafood dishes and fragrant coffeehouses, while art enthusiasts can marvel at the masterpieces in the Odessa Museum of Fine Arts.

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    Here are some interesting facts about Odessa to share with your students:

    • Founded in 1794 by Catherine the Great, Odessa quickly became a major trade center and cultural hub.
    • The city’s Odessa National Academic Theatre of Opera and Ballet is one of the oldest and most prestigious opera houses in Ukraine.
    • Odessa International Film Festival, held annually since 2004, showcases independent films from around the world.

    Odessa’s infectious energy, rich history, and stunning seaside location make it a captivating destination for families seeking a unique and memorable European adventure.

    Ottawa, Canada

    Ottawa, Canada

    Ottawa, Canada’s capital city, offers a delightful blend of urban sophistication and natural beauty. Nestled along the scenic Rideau Canal, Ottawa exudes a friendly charm, evident in its welcoming locals and family-oriented attractions. Kids will be captivated by the Changing of the Guard ceremony at Parliament Hill, a majestic daily spectacle featuring scarlet-clad soldiers.

    History buffs can explore the Canadian War Museum, showcasing fascinating exhibits on Canada’s military history, or delve into the ByWard Market, a colorful hub buzzing with fresh produce, artisan crafts, and lively cafes. Nature lovers can enjoy a boat ride on the Rideau Canal, offering stunning cityscapes and glimpses of wildlife.

    Here are some interesting facts about Ottawa to share with your students:

    • Ottawa is the fourth-largest city in Canada and home to over 1 million residents.
    • The iconic Parliament Buildings, housing the Canadian government, are a must-see for any visitor.
    • The city hosts numerous festivals throughout the year, including the Winterlude, a celebration of winter with ice sculptures, skating rinks, and live music.

    Ottawa’s blend of cultural attractions, natural beauty, and friendly atmosphere makes it a perfect choice for families seeking a safe and enriching city break in North America.

    Oyo, Nigeria

    Oyo, Nigeria

    Oyo, nestled in southwestern Nigeria, pulsates with the rich history and vibrant culture of the Yoruba people. Once the powerful capital of the ancient Oyo Kingdom, the city boasts imposing mud walls, remnants of its glorious past. Kids will be amazed by the towering Alaafin’s Palace, adorned with vibrant murals and housing artifacts from bygone eras.

    Beyond its historical treasures, Oyo offers a kaleidoscope of cultural experiences. Families can witness traditional masquerades like Egungun, adorned in elaborate costumes, or visit bustling markets overflowing with colorful fabrics, handcrafted souvenirs, and delicious street food. The ancient Osun Osogbo Grove, a UNESCO World Heritage Site, offers a glimpse into Yoruba spirituality with its sacred shrines and towering trees.

    Here are some intriguing facts about Oyo to share with your students:

    • The Oyo Kingdom, founded in the 14th century, was one of the most powerful empires in West Africa.
    • The ancient Oyo Town Walls, some estimated to be over 1,000 years old, are the longest earthworks in Africa.
    • Oyo hosts the annual Osun Osogbo Festival, a vibrant celebration of the Yoruba goddess Osun, attracting thousands of visitors from around the world.

    From its historical grandeur to its vibrant culture, Oyo offers families a fascinating window into West African heritage and traditions.

    Oklahoma City, United States

    Oklahoma City, United States

    Oklahoma City, rising from the heart of the American Midwest, surprises visitors with its blend of cowboy history, modern skyline, and family-friendly attractions. Kids will be enthralled by the Bricktown Canal, bustling with restaurants and entertainment, where they can take a nostalgic canal cruise or explore the Oklahoma City Museum of Art.

    History buffs can delve into the city’s past at the National Cowboy & Western Heritage Museum, showcasing cowboy legends and Native American artifacts. Adventure seekers can brave the thrilling rides at Six Flags Frontier City, while nature lovers can explore the sprawling Oklahoma City Botanical Garden and its vibrant plant life.

    Here are some interesting facts about Oklahoma City to share with your students:

    • Oklahoma City is the capital of Oklahoma and the state’s largest city, with a population of over 650,000.
    • The Devon Tower, Oklahoma City’s tallest building, is the 51st tallest in the United States.
    • The city hosts the annual Bricktown Jazz Festival, attracting renowned musicians from across the globe.

    Oklahoma City’s blend of Western heritage, modern attractions, and family-friendly activities makes it a perfect choice for a fun and educational vacation in the heart of the United States.

    Oslo, Norway

    Oslo, Norway

    Oslo, Norway’s captivating capital, rests on the edge of the majestic Oslofjord, offering families a unique blend of stunning scenery, vibrant culture, and eco-friendly adventures. Kids will be awestruck by the iconic Oslo Opera House, resembling a giant wave rising from the sea, and the playful Vigeland Park, filled with quirky sculptures and captivating playgrounds.

    History buffs can explore the Viking Ship Museum, housing impressive ancient vessels, or delve into the rich maritime history at the Aker Brygge waterfront district. Eco-conscious families can enjoy a ferry ride across the fjord, visit the futuristic Astrup Fearnley Museum of Modern Art housed in a floating building, or bike along the city’s extensive network of dedicated paths.

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    Here are some interesting facts about Oslo to share with your students:

    • Oslo is the most populous city in Norway and the country’s political, economic, and cultural center.
    • The city boasts numerous parks and green spaces, making it one of the most livable cities in the world.
    • Oslo is known for its commitment to sustainability and was named the European Green Capital in 2019.

    From its breathtaking fjord scenery to its eco-friendly initiatives and captivating attractions, Oslo offers families an unforgettable experience in Scandinavia.

    Orumiyeh, Iran

    Orumiyeh, nestled amidst the breathtaking landscapes of northwestern Iran, shines like a jewel on the shores of the once-vast Lake Urmia. While the lake sadly faces ecological challenges, the city itself boasts a rich tapestry of history, culture, and natural beauty. Kids will be amazed by the ornate Takht-e Soleyman citadel, offering panoramic views and housing archaeological treasures, and the captivating Urmia Museum, showcasing ancient artifacts and fascinating exhibits on the region’s past.

    Beyond historical gems, Orumiyeh bursts with vibrant bazaars like Sepahsalar, where families can wander through a maze of stalls overflowing with colorful carpets, handcrafted souvenirs, and mouthwatering local delicacies. Nature lovers can escape to the lush landscapes of Kaboud Mountain, a haven for hikers and picnickers, or explore the enchanting Dariachen Lake, home to diverse birdlife and stunning sunsets.

    Here are some intriguing facts about Orumiyeh to share with your students:

    • Orumiyeh has been inhabited for over 8,000 years, making it one of the oldest continuously inhabited cities in the world.
    • The city was a major Silk Road trading center and boasts a rich cultural heritage influenced by various empires.
    • Despite the challenges facing Lake Urmia, conservation efforts are underway, offering hope for its restoration and the return of its vibrant ecosystem.

    From its ancient history to its vibrant bazaars and natural beauty, Orumiyeh offers families a glimpse into the heart of Iranian culture and a chance to witness the resilience of nature.

    Onitsha, Nigeria

    Onitsha, Nigeria

    Onitsha, pulsating on the banks of the majestic Niger River, is a vibrant hub of commerce and culture in southeastern Nigeria. Nicknamed the “Main Market of Eastern Nigeria,” Onitsha is a sensory feast for kids, with bustling markets like Ochanja Market overflowing with fabrics, electronics, and fresh produce. Don’t miss the colorful Niger Bridge, connecting Onitsha to Asaba, a marvel of engineering offering stunning views of the river.

    Beyond the bustle, Onitsha reveals its rich heritage through landmarks like the Basilica of the Holy Trinity, an architectural masterpiece, and the Igbo Museum, showcasing artifacts and exhibits on the history and traditions of the Igbo people. Families can escape the city’s energy at the sprawling Oguta Lake, home to diverse wildlife and offering boat rides and peaceful picnics.

    Here are some interesting facts about Onitsha to share with your students:

    • Onitsha is one of the most populous cities in Nigeria and a major economic center, known for its thriving trade and entrepreneurial spirit.
    • The city is a cultural melting pot, home to diverse ethnicities and vibrant festivals like the Ofala festival, celebrating Igbo culture with traditional music, dance, and colorful attire.
    • Onitsha boasts a rich literary tradition, having produced renowned writers like Chinua Achebe and Chimamanda Ngozi Adichie.

    From its bustling markets and historical landmarks to its stunning natural landscapes and vibrant culture, Onitsha offers families a captivating glimpse into the heart of southeastern Nigeria.

    Orenburg, Russia

    Orenburg, Russia

    Orenburg, perched on the edge of the vast Eurasian Steppe in southern Russia, offers families a unique blend of history, culture, and adventure. Kids will be enthralled by the Orenburg Regional Museum, showcasing relics from Scythian gold hoards and the fascinating history of the Orenburg Cossacks. History buffs can delve deeper at the National Literature Museum, dedicated to the life and works of the renowned Russian writer Alexander Pushkin.

    Beyond its museums, Orenburg boasts stunning natural beauty, evident in the Orenburg Steppe Nature Reserve, home to diverse wildlife and offering horseback riding or hiking adventures. Families can explore the charming Gaslight Alley, lined with 19th-century buildings illuminated by flickering gas lamps, or enjoy a picnic in the lush Menagarovsky Park with its scenic ponds and playful fountains.

    Here are some interesting facts about Orenburg to share with your students:

    • Orenburg was founded in 1735 as a military outpost and played a crucial role in Russia’s westward expansion.
    • The city is known for its Orenburg shawls, intricate woolen scarves traditionally made by local artisans.
    • Orenburg hosts the annual Gaslight Festival, transforming the city into a nostalgic journey back in time with live music, traditional performances, and illuminations.

    From its historical treasures and cultural traditions to its stunning natural landscapes and outdoor adventures, Orenburg offers families a unique and unforgettable experience in southern Russia.

    List of All Cities Starting With O

    City  Country  
    OuagadougouBurkina Faso
    Oklahoma CityUnited States
    OmahaUnited States
    OaklandUnited States
    OstravaCzech Republic
    OrlandoUnited States
    Ojo de AguaMexico
    OxnardUnited States
    Overland ParkUnited States
    OceansideUnited States
    OxfordUnited Kingdom
    OntarioUnited States
    Ocumare del TuyVenezuela
    OsanSouth Korea
    OrangeUnited States
    OlatheUnited States
    O MonVietnam
    Orekhovo-Borisovo SevernoyeRussia
    OdessaUnited States
    OldhamUnited Kingdom
    OlomoucCzech Republic
    Oum el BouaghiAlgeria
    OremUnited States
    Ozamiz CityPhilippines
    OgdenUnited States
    O’FallonUnited States
    Oued ZemMorocco
    Oke MesiNigeria
    Ostrowiec SwietokrzyskiPoland
    Ostrow WielkopolskiPoland
    Oulad TeimaMorocco
    OshkoshUnited States
    OngjinNorth Korea
    Ouro PretoBrazil
    Oroqen ZizhiqiChina
    OudtshoornSouth Africa
    OuahigouyaBurkina Faso
    OpavaCzech Republic
    Oued RhiouAlgeria
    OwensboroUnited States
    Orland ParkUnited States
    OcalaUnited States
    Oak LawnUnited States
    OkcheonSouth Korea
    OhridNorth Macedonia
    Ozone ParkUnited States
    Oak ParkUnited States
    OumeIvory Coast
    OlympiaUnited States


    There are not many cities in the world that start with the letter “O”. However, the cities that do start with this letter are all unique in their own ways. From the bustling metropolis of Osaka to the historical city of Oxford, there is something for everyone to enjoy in these cities. So, whether you are looking for a city to explore or simply want to add a new stamp to your passport, be sure to check out one of these cities starting with “O”!