Tadeusz Lewicki (1906-1992) was a Polish Arabist, Islamicist, historian, and numismatist. He is known for his works on the Ibadi community.
Tadeusz Lewicki was born on in Lviv (Polish: Lwów) in modern-day Ukraine, a city that, at the time, was part of the Kingdom of Poland and later the Second Polish Republic.
Tadeusz Lewicki died in Kraków on , He was buried at the Rakowicki cemetery in Kraków.