Joseph Leonard Bonamassa ( BAH-nə-MAH-sə; born May 8, 1977) is an American blues rock guitarist, singer and songwriter. He started his career at age twelve, when he opened for B.B. King. Since 2000, Bonamassa has released fifteen solo albums through his independent record label J&R Adventures, of which eleven have reached No. 1 on the Billboard Blues chart.

Bonamassa has played alongside many notable blues and rock artists, and has earned three Grammy Awards nominations. Among guitarists, he is known for his extensive collection of vintage guitars and amplifiers.

In 2020, Bonamassa created Keeping the Blues Alive Records, an independent record label that promotes and supports the talent of blues musicians. Notable artists include Dion DiMucci, Joanne Shaw Taylor, Joanna Connor, and Larry McCray. Bonamassa produces and collaborates on many of the projects.