Konstantinos Tzoumas (Greek: Κωνσταντίνος Τζούμας, Piraeus, August 30, 1944 – Athens, June 25, 2022) was a Greek actor, radio producer and writer.

He was born in Piraeus and grew up in Pasalimani and Athens. He studied acting in Athens and dance in New York. In cinema he appeared in the films: Sweet Gang, The Rags Still Sing, Eleftherios Venizelos 1910 - 1927, Akropol, Oi Apenanti, The Steamers a.k.a. Another one for... Korydallos!, Rebetiko, Happy Day and The Dracula of Exarchia. In the theater he has starred in works such as Waiting for Gondo, My Friend Lefterakis, "I don't..." and K.P. Cavafy Autobiography. On television, he had made guest appearances in the series: The Unacceptable, The Three Graces, Men and Women and Two Strangers. In recent years, he was a radio producer on a daily show called Café Society on the station "En Lefko". He published three autobiographical books[8] with the titles As a Miracle (2008), Complete Unknown (2009) and Panoletriambos (2010).