Percy Helton (January 31, 1894 - September 11, 1971) was an American film and television actor.

One of his most memorable supporting roles was playing a drunken Santa Claus in Miracle on 34th Street. He also appeared in small but memorable roles in Criss Cross (1949), The Set-Up (1949), Kiss Me Deadly (1955) and Butch Cassidy and the Sundance Kid (1969). Percy Helton began acting as a young child at the age of two, appearing in his father's vaudeville act. He appeared in many Broadway plays as a child actor before joining the US Army to serve in World War I with the American Expeditionary Forces. The short actor with a hoarse, raspy voice and breathy delivery (similar to that of 1960s and 1970s actor John Fiedler) was a fixture in a wide range of films and TV programs in the 1950s and 1960s.

One of the most familiar faces and voices in Hollywood pictures of the 1950s. Percy Helton acted almost from infancy, appearing in his father's vaudeville act. The famed Broadway producer David Belasco cast Helton in a succession of child roles over several years, giving the boy an invaluable grounding in the technique and spirit of the theatre. George M. Cohan took Helton under his wing and used him a number of plays. Following his army service with the American Expeditionary Forces in the First World War, Helton returned to acting on the stage and carved out a substantial career as a juvenile in plays such as One Sunday Afternoon and Young America. In one of these plays, he was required to shout and scream for much of the performance, and by the end of the run, his voice had become permanently hoarse. He moved by necessity into character roles, working primarily on the stage until the late 1940s. Despite some early work as a juvenile in silent films, it was not until his brief but memorable appearance as a drunken Santa Claus in 'Miracle On 34th Street (1947)' that he began to shift primarily into film work. His diminutive physique and unmistakeable voice made him a fixture in a wide range of films and TV programs throughout the next two decades.