Humayun Kabir Sadhu (known as Humayun Sadhu; 1 May 1982 – 25 October 2019) was a Bangladeshi television director, scriptwriter and actor.
Sadhu, was a man who wore many hats, a film director, actor and writer. He started his professional journey as an assistant to Mostofa Sarwar Farooki, and developed a fondness for directing since then. His first telefilm Un Manush earned a huge response from the audience. He has also written the book, Nonai.
Sadhu died on 25 October 2019 at Square Hospital in Dhaka.