Pierre Vassiliu (23 October 1937 – 17 August 2014) was a French singer, songwriter and actor. His first record, "Armand", co-written with his brother Michel, appeared in 1962.

It was an enormous success, selling 150,000 copies. This opened the doors of the Olympia in Paris to him, where he opened for the Beatles in 1964. He went on to a two-month stand with Françoise Hardy, Jacques Dutronc, and Johnny Hallyday.