Mongo may refer to:

• Mongo, Chad, a Sahel city
• Apostolic Vicariate of Mongo, Chad, a Roman Catholic missionary jurisdiction
• Mongo Department, Gabon
• Mongo, Sierra Leone, a chiefdom
• Mongo River (Little Scarces River) - see List of rivers of Guinea and List of rivers of Sierra Leone

• Mongo, Indiana, an unincorporated community

• Mongo language, the language of the Mongo people
• Mongo, one of the five languages of the Duala language-cluster, spoken in Cameroon

• Mongo people, one of the largest ethnic groups in the Democratic Republic of the Congo
• Mongo Santamaría (1917–2003), Cuban jazz/salsa percussionist
• Mongo Beti (1932–2001), pen name of Cameroonian writer Alexandre Biyidi Awala
• "Mongo", family nickname for Ramón Castro Ruz (1924–2016), eldest brother of Fidel Castro
• Mongo, nickname of musician Drew Parsons (born 1974)
• Mongo, a London-based rapper and founder of hip hop group Mud Family
• Mike Mangold (1955–2015), American airline and former aerobatics pilot whose US Air Force call sign was "Mongo"
• Mark LoMonaco (born 1971), American professional wrestler, one of whose ring names is "Mongo Vyle"
• Steve McMichael (1957-2025), former American football player and professional wrestler whose ring name was "Mongo"

• Mongo (Flash Gordon), a fictional setting for the adventures of Flash Gordon
• Magic Mongo, a fictional genie featured in segments of the Saturday morning TV program The Krofft Supershow
• Mongo (Shrek), a fictional giant gingerbread man in the animated movie Shrek 2
• Mongo the Magnificent, a fictional private investigator with dwarfism
• Mongo, a character in the film Precious
• Mongo, a character in the 1974 comedy film Blazing Saddles, played by Alex Karras
• General Mongo, a character in the 1970 Western film Compañeros
• Mongo, a fictional boss character in the game show Nick Arcade
• Mongo, a fictional character in the Dungeon Crawler Carl series

• Möngö, a Mongolian monetary unit worth 0.01 Mongolian tögrög
• Mongo (album), a 1959 album by Mongo Santamaría
• Mongo (horse), an American champion thoroughbred racehorse
• MongoDB, a document-oriented database
• Mongo foot, the use of the front foot to propel a skateboard

• Monga (disambiguation)
• Mongol (disambiguation)
• Mungo (disambiguation)