Martin Popoff (born 1963) is a Canadian-born music journalist, critic and author. He is mainly known for writing about the genre of heavy metal music. The senior editor and co-founder of Brave Words & Bloody Knuckles, he has additionally written over twenty books that both critically evaluate heavy metal and document its history. He has been called "heavy metal's most widely recognized journalist" by his publisher. Popoff presently lives in Toronto.