Mike Watt is an American bass guitarist, singer, songwriter, and composer whose work spans punk rock and hard rock.

Born on December 20, 1957, in Portsmouth, Watt grew up to become a citizen of the United States. He attended San Pedro High School and later studied at Los Angeles Harbor College, two institutions that placed him in the orbit of the Southern California scene that would define much of his professional life.

Over the course of his career, Watt has worked across a range of roles — musician, composer, radio personality, and podcaster among them — reflecting a sustained engagement with sound and communication in multiple forms. His recorded and performed output draws consistently from punk rock and hard rock, two genres he has continued to work within across decades. The breadth of his credited occupations suggests a restless approach to creative work, one that extends beyond performance alone into the construction and broadcasting of music and ideas.

The Library of Congress catalogs him under the authorized label Watt, Mike, a designation that places his body of work within a formal archival record. His ongoing activity as a podcaster and radio personality points to a career that has moved between stage, studio, and microphone, with punk rock and hard rock remaining the consistent generic anchors throughout.