Olga Kotelko (2 March 1919 – 24 June 2014) was a Canadian nonagenarian track and field athlete.
She held over 30 world records and won over 750 gold medals in her age category for the Masters competition, age 90-95, and was considered "one of the world's greatest athletes" as a result.
She held every track and field world record she attempted for her age group.