Diary of a Bad Man (often abbreviated as DOABM) is a British comedy drama web series that premiered on 6 September 2010 and ended on 10 October 2013.

The series was created by Humza Arshad and consists of continuous episodes uploaded on his YouTube channel HumzaProductions, revolving around the life of a young man and his relationships with his friends and family.

[5] The series follows a fictionalised portrayal of Arshad consisting of video diaries chronicling the life of a self-styled "Badman with seriously good looks" as an exaggerated stereotype of an Asian youth in today's society,[4] who is also a "troubled young man with the mentality of a seven-year-old...[6][7] whose adventures don't shy away from controversy".

[8] Arshad's webcam monologues and sketches focus on topics such as impressing girls, arranged marriage,[4][9] racism, attitudes towards women, his relationship with his parents, and his extended family and friends.

"[4] The Huffington Post reported that the series "defy simple labels" and that episodes "begin with a superficial obsession end with a moral lesson.