Colo, American western lowland gorilla, first gorilla born in captivity and oldest recorded (born 1956)

Colo was a western gorilla widely known as the first gorilla to be born in captivity anywhere in the world and the oldest known gorilla in the world in 2017. Colo was born at the Columbus Zoo and Aquarium to Millie Christina (mother) and Baron Macombo (father), and lived there for her entire life. She was briefly called "Cuddles" before a contest was held to officially name her. Colo's name was derived from the place of her birth, Columbus, Ohio.

The western lowland gorilla is one of two Critically Endangered subspecies of the western gorilla that lives in montane, primary and secondary forest and lowland swampland in central Africa in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea and Gabon. It is the nominate subspecies of the western gorilla, and the smallest of the four gorilla subspecies.

January 17 is the 17th day of the year in the Gregorian calendar; 348 days remain until the end of the year.