Donald Lusk (October 28, 1913 – December 30, 2018) was an American animator and director.

Lusk was hired by The Walt Disney Company in 1933 as an inbetweener. His first film as an animator was 1938's Ferdinand the Bull. He worked on Pinocchio, Fantasia, Bambi, Song of the South, Melody Time, So Dear to My Heart, The Adventures of Ichabod and Mr. Toad, Cinderella, Alice in Wonderland, Peter Pan, Lady and the Tramp, Sleeping Beauty, and One Hundred and One Dalmatians.

Lusk left Disney in 1960, but continued to work as an animator during the 1960s and 1970s. Aside from animation, Lusk also directed multiple cartoon films and series, including the Peanuts television specials and movies and for the Hanna-Barbera studio. His work at the latter included The Flintstones, The Jetsons, Scooby-Doo, The Smurfs, and Tom and Jerry.

In the early 1990s, Lusk retired after a career which spanned some sixty years.

He died on December 30, 2018, in San Clemente, California, aged 105.