Serdar Deniz was born in Ankara on April 18, 1969. In 1998, he graduated from the German Conservatory "Theater der Keller" at Linsburg University in Cologne, Germany. Serdar Deniz speaks Turkish, German, English and French. His hobbies include dancing, fencing, surfing, diving, water and mountain skiing, wake-snowboarding, karate, tae-kwon-do, mountain-biking, rollerblade, horseback riding, motorcycling.
In 2003, she played İbrahim Pasha in the series "Hürrem Sultan" directed by Fatih Aksoy and starring Gülben Ergen, Ali Sürmeli and Hatice Aslan.

In 2009, he played the character of Levent Bozoklar in the 3rd season of the series "Kurtlar Vadisi Pusu" starring Necati Şaşmaz.

On December 8, 2014, he starred in the series "Diriliş: Ertuğrul Gazi" on December 8, 2014