Gary Lucas (born June 20, 1952) is an American guitarist, songwriter, and composer who was a member of Captain Beefheart's band. He formed the band Gods and Monsters in 1989.

Lucas has released more than 50 albums to date as a solo artist or band leader in a variety of genres, touring internationally.

Lucas has collaborated with Leonard Bernstein, Jeff Buckley, John Cale, Nick Cave, David Johansen, and Lou Reed. He has also worked with Chris Cornell, Najma Akhtar, DJ Spooky, Dr. John, Amanda Palmer, Bryan Ferry, The Future Sound of London, Allen Ginsberg, Peter Hammill, Warren Haynes, Dave Liebman, Joe Lovano, Kate & Anna McGarrigle, Geoff Muldaur, Bob Neuwirth, Mary Margaret O'Hara, Graham Parker, Van Dyke Parks, Iggy Pop, Roswell Rudd, Fred Schneider, Richard Barone, John Sebastian, Adrian Sherwood, Patti Smith, Peter Stampfel, Damo Suzuki, Steve Swallow, Bob Weir, John Zorn, Nona Hendryx, Emir Kusturica and the No Smoking Orchestra, Hal Willner, Kip Hanrahan, Elli Medeiros, Haydee Milanes, Suylen Milanes, Los Van Van, and Alabama Three.

In 2020, instead of doing live performances, which was not possible due to the COVID-19 Pandemic, Lucas started a Pandemic Live Streaming every Tuesday, Thursday, and Saturday at 3pm EST on his Facebook page, which has gathered fans from all over the world.