Michael David "Mike" Watt (born December 20, 1957) is an American bassist, singer and songwriter.

He is best known for co-founding the rock bands Minutemen, Dos, and Firehose; as of 2003, he is also the bassist for the reunited Stooges and a member of the art rock/jazz/punk/improv group Banyan as well as many other post-Minutemen projects.