Martin Fierro (January 18, 1942 – March 13, 2008) was a saxophonist who played with the Sir Douglas Quintet, Quicksilver Messenger Service, Jerry Garcia, and Zero.

He toured Mexico with a band, then moved to San Francisco and joined Mother Earth, a blues rock group led by Tracy Nelson.

[1] In 1971, Fierro played saxophone and flute on Hooteroll?, an instrumental, free-form album by guitarist Jerry Garcia and keyboard player Howard Wales.

[4] In 1984, Fierro joined the Bay Area Jam Band Zero alongside founding members Steve Kimock, Bobby Vega, John Cipollina, and Greg Anton.

[1] With James Cotton With Mother Earth With Shades Of Joy With Sir Douglas Quintet With Quicksilver Messenger Service With Jerry Garcia With Merl Saunders With Zero With Rory Gallagher With the String Cheese Incident