Tahar Ben Hassen (born July 14, 1941), sometimes written as Tamar Ben Hassan, is a retired Tunisian boxer.
Hassen competed in the 1960 Summer Olympics as a bantamweight. He lost his first bout to Nicolae Puiu after receiving a first round bye.
Hassen also competed in the 1964 Summer Olympics as a featherweight. He won is first bout against Peter Weiss, but lost his next bout against eventual silver medalist Anthony Villanueva.
As a professional Hassen lost to David Kotey for the African Boxing Union featherweight title.