Mazen Kerbaj (born Beirut, 1975) is a Lebanese jazz and free improvisation trumpeter and comic book artist.

Kerbaj was born in Lebanon to artist and poet Laure Ghorayeb and actor Antoine Kerbaj.

He grew up in Beirut during the Lebanese Civil War, and began playing free jazz in local clubs following the reestablishment of cultural life in the 1990s.

He started his own record label, and toured internationally, playing with musicians such as Michael Zerang, Mats Gustafsson, Guillermo Gregorio, and Fred Lonberg-Holm in Europe and the United States.

In July 2006, he recorded himself playing live during the 2006 Lebanon War with the sounds of bombs exploding and car sirens wailing.