Arthur O'Connell (March 29, 1908 – May 18, 1981) was an American stage and film actor. He appeared in films (starting with a small role in Citizen Kane) in 1941 and television programs (mostly guest appearances). Among his screen appearances were Picnic, Anatomy of a Murder, and as the watch-maker who hides Jews during WWII in The Hiding Place.

A veteran vaudevillian, O'Connell, from New York City, made his legitimate stage debut in the mid 1930s, at which time he fell within the orbit of Orson Welles' Mercury Theatre. Welles cast O'Connell in the tiny role of a reporter in the closing scenes of Citizen Kane (1941), a film often referred to as O'Connell's film debut, though in fact he had already appeared in Freshman Year (1939) and had costarred in two Leon Errol short subjects as Leon's conniving brother-in-law.