Vince Barnett (July 4, 1902 – August 10, 1977) was an American film actor. He appeared on stage originally before appearing in more than 230 films between 1930 and 1975.

Barnett was born July 4, 1902, in Pittsburgh, Pennsylvania, the son of Luke Barnett, a well-known comedian who specialized in insulting and pulling practical jokes on his audiences. (Luke's professional nickname was "Old Man Ribber" and "the King of Ribbing".)^{[citation needed]}

Barnett graduated from Duquesne University Prep School and the Carnegie Institute of Technology. An avid amateur pilot since 1921, he flew mail planes during 1925-1926. Barnett appeared on Broadway in Earl Carroll's Vanities during 1927.

A 1932 newspaper report noted that "Barnett for years [was] known in Hollywood as the 'professional ribber' -- appearing at banquets and parties as a paid 'insulter.'" He would insult the guests in a thick German accent, spill the soup, and drop the trays—all to the great delight of hosts who enjoyed watching their friends squirm and mutter "Who hired that jerk?" Wrote author Ephraim Katz, "Among the celebrated 'victims' of his practical jokes were President Franklin D. Roosevelt, Winston Churchill, George Bernard Shaw, Henry Ford, and Charles Lindbergh."

During the transition from silent films to sound, an employee at Metro-Goldwyn-Mayer hired Barnett to prank Louis B. Mayer. He impersonated a sound expert and went with Mayer to a soundstage being built, criticizing the construction and using double-talk to confuse him. He ended his evaluation by proclaiming that the whole soundstage needed to be torn down, and Mayer was about to order it done before his co-workers revealed the prank. David Niven, in his 1975 memoir, recalled Barnett posing as an important German director at a banquet attended by Samuel Goldwyn. Barnett gave Goldwyn an uncomfortable time: "With a heavy German accent, he said that he was a little surprised that Goldwyn had been invited to meet him because he considered him to be the least talented filmmaker in the United States, [and] the only reason he had brought the Russian actress Anna Sten out to Hollywood was because he wanted to get into her bloomers."

Vince Barnett's initial involvement with Hollywood was as a screenwriter, "writing screenplays for the two-reeler movies of the late 1920s."

He began appearing in films in 1930, playing hundreds of comedy bits and supporting parts until retiring in 1975. Among his screen roles was the gangster "secretary" in Scarface. From 1930 Barnett appeared, usually as comedy relief, in films and on television in a career spanning 45 years. Among his early roles, apart from Scarface, were The Big Cage (1933), Thirty Day Princess (1934) and Princess O'Hara (1935). In later years, Barnett played straight character parts, often as careworn little men, undertakers, janitors, bartenders and drunks in pictures ranging from films noir (The Killers, 1946) to westerns (Springfield Rifle, 1952). He appeared in "B" comedies and mysteries: as gangsters in Petticoat Larceny (1943), Little Miss Broadway (1947), and Gas House Kids Go West (1947), and notably as Tom Conway's enthusiastic sidekick in The Falcon's Alibi (1946). After World War II, with the Hollywood studios making fewer films, Barnett became a familiar face on television.

In one of his last public appearances, Barnett showcased his unique brand of humor with a monologue, delivered at Madison Square Garden in the 1972 vaudeville revue The Big Show of 1936.