Thomas W. Fowler (born June 10, 1951) is an American bass guitarist and musician. Born in Salt Lake City, Utah, he has played with It's a Beautiful Day, Frank Zappa, The Mothers of Invention, Jean-Luc Ponty, Ray Charles, Steve Hackett, and many others. His brother Bruce Fowler played trombone in The Mothers (as in the album Roxy & Elsewhere) and his other brother Walt was also a horn player for Zappa.
He also recorded albums with Air Pocket, a band including his siblings among others.