Umberto D'Orsi (30 July 1929 – 31 August 1976) was an Italian character actor and comedian.

Born in Trieste, D'Orsi took a degree in law in 1953, but he was already active in theater from 1950, performing in small companies of prose and revue. From 1962 till his death, D'Orsi was a prolific supporting actor, appearing in as many as fifteen films a year. He died in Rome at 47 from a heart attack.