Avni Yalçın (born January 1, 1947, Istanbul) is a distinguished Turkish film and television actor, known for his remarkable contributions to both the stage and screen. With a career spanning several decades, Yalçın has become a beloved figure in Turkish cinema, particularly for his comedic roles and dramatic performances.

Yalçın was born in Istanbul on January 1, 1947. He developed an early passion for acting, which led him to pursue a career in the arts. His dedication to the craft saw him become a well-regarded actor in Turkish theatre and film.

Yalçın's career in acting began with his work at the Istanbul City Theatres, where he became an established actor. He also worked at the Dostlar Theatre, further honing his skills. His notable television career began with his role as Şevket in the popular series Hatırla Sevgili. However, after his character died of a heart attack in the late 60s, Yalçın left the series and joined the cast of the action-packed Karayılan series. In 2009, he played the character Yorgo in the film Güz Sancısı, which earned him more recognition. However, it was his role as "Mustache Literature Teacher Avni" in the beloved Turkish comedy Hababam Sınıfı Tatilde that brought him widespread fame and solidified his place in Turkish cinema history. Additionally, Yalçın was married to actress Ayşegül Devrim for a period, marking another aspect of his personal life. Throughout his career, he has become a staple of Turkish television and cinema, celebrated for his versatile performances across different genres.