Marcin Bosak (born 9 September 1979) is a Polish actor. He appeared in more than twenty-five films since 2002.
In 2003, he graduated The Aleksander Zelwerowicz National Academy of Dramatic Art in Warsaw.
His wife is Polish actor Monika Pikuła, woth which he has two sons. Is a brother of Anna Bosak, the finalist of program You Can Dance: Po prostu tańcz!.