The Complete List of Fast food chains That Start With O
This collection presents 15 Fast food chains that start with O, spanning from “O’Briens Irish Sandwich Cafe” to “Otarian”. Many are regional quick-service brands offering sandwiches, burgers, and local specialties across several countries. This list helps travelers, food bloggers, franchise researchers, and curious diners find options and basic facts fast.
Fast food chains that start with O are quick-service restaurants whose names begin with the letter O. Many grew from local sandwich, coffee, or burger traditions, with O’Briens known for Irish-style sandwiches.
Below you’ll find the table with Name, Country of origin, Year founded, Number of locations (global/region), Primary cuisine/type, Official website, and Status/notes.
Name: The chain’s official trading name so you can quickly identify and search for it online.
Country of origin: Where the brand began, which helps you understand its regional roots and typical menu influences.
Year founded: The founding year gives you historical context and shows how long the brand has operated.
Number of locations (global/region): Current or estimated counts show scale and where you might find outlets when traveling.
Primary cuisine/type: The main food style or service model, so you know what to expect from the menu and experience.
Official website: The brand’s primary website link, which you can use to check menus, locations, and franchise information.
Status/notes: Short status notes, such as active, defunct, franchising details, and last-checked date to inform decision-making.
Fast food chains that start with O
Name
Country of origin
Year founded
Number of locations (approx)
OAKBERRY
Brazil
2016
600 est.
O‘Briens Irish Sandwich Cafe
Ireland
1988
100 est.
Ogalo
Australia
1989
21
Old Chang Kee
Singapore
1956
100 est.
Olivers Real Food
Australia
2005
20 est.
Ono Hawaiian BBQ
United States
2002
102
Oodles
United Kingdom
2010
39
Oowee Vegan
United Kingdom
2016
5
Opa! of Greece
Canada
1998
100 est.
Oporto
Australia
1986
190 est.
Orange Julius
United States
1926
5,700 (often co-branded)
Original Tommy’s
United States
1946
33
Oscar’s
United Kingdom
1995 est.
defunct — peak 3 (1995)
O‘Tacos
France
2007
300 est.
Otarian
United Kingdom
2010
defunct — peak 3 (2011)
Descriptions
OAKBERRY
A Brazilian QSR franchise specializing in açaí bowls and smoothies. Known for its quick, healthy options, it has expanded rapidly across the globe with hundreds of locations. (oakberry.com)
O‘Briens Irish Sandwich Cafe
An Irish sandwich cafe franchise famous for its made-to-order sandwiches, wraps, and coffee. It operates in multiple countries, often in airports and city centers. (obriens.ie)
Ogalo
An Australian fast-food chain that specializes in Portuguese-style charcoal chicken. A direct competitor to Oporto, it offers chicken burgers, wraps, and platters. (ogalo.com.au)
Old Chang Kee
A Singaporean institution famous for its curry puffs and other deep-fried snacks. This grab-and-go chain is a staple in Singapore and has expanded internationally. (oldchangkee.com)
Olivers Real Food
An Australian fast-food chain offering healthier alternatives like fresh juices, salads, and sushi. It’s often found along major highways, providing a fresh option for travelers. (olivers.com.au)
Ono Hawaiian BBQ
A U.S.-based fast-casual chain serving Hawaiian-style plate lunches. It’s known for its grilled meats, macaroni salad, and generous portions, primarily in California and Arizona. (onohawaiianbbq.com)
Oodles
A popular UK-based fast-food franchise serving Indo-Chinese cuisine. Customers choose a base like noodles or rice and add various stir-fried toppings in a signature box. (oodleschinese.com)
Oowee Vegan
A UK-based QSR chain famous for its “deliciously dirty” vegan burgers, loaded fries, and plant-based fried ‘chicken’. It has expanded from its Bristol origins to several major cities. (ooweevegan.com)
Opa! of Greece
A Canadian fast-food chain specializing in Greek cuisine. A popular choice in food courts, it’s known for souvlaki, gyros, and Greek salads served quickly. (opasouvlaki.ca)
Oporto
An Australian fast-food chain famous for its Portuguese-style flame-grilled chicken and original chili sauce. It serves burgers, wraps, and salads with a unique spicy flavor. (oporto.com.au)
Orange Julius
An iconic American chain famous for its frothy fruit drinks, most notably the original Orange Julius. Now owned by Dairy Queen, it’s often co-located within DQ stores. (dairyqueen.com)
Original Tommy’s
A legendary Southern California fast-food chain famous for its chili burgers, hot dogs, and fries. It maintains a classic, no-frills walk-up and drive-thru experience. (originaltommys.com)
Oscar’s
A defunct British fast-food chain from the 1990s that aimed to compete with McDonald’s. It was known for its distinct yellow and green branding before it closed down.
O‘Tacos
A massive French fast-food chain specializing in “French tacos,” which are large, grilled tortillas filled with meat, fries, and cheese sauce. Extremely popular in France and Europe. (o-tacos.com)
Otarian
A defunct vegetarian fast-food chain with locations in London and New York. It was notable for its focus on sustainability and carbon-footprint labeling on its menu items.
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