Rollin "Ham" Clare Hamilton (October 28, 1898 – June 3, 1951) was an early motion picture animator.
He was Walt Disney's first hire, and from 1924 to 1928, he worked as an animator for the Alice Comedies and Oswald the Lucky Rabbit shorts.
In 1928, Hamilton and several other animators left the Walt Disney Studio to work at Winkler Pictures' new animation studio with the help of Charles Mintz (who in turn, made Oswald turn from a Disney property, to a Universal property).
A year later, Hamilton briefly transferred to Walter Lantz's new studio before he helped fellow animators Hugh Harman and Rudolf Ising establish their own animation studio.
In Schlesinger's studio, he animated Buddy, Beans the Cat, and Porky Pig.