Bonnie Bramlett (born Bonnie Lynn O'Farrell, November 8, 1944) is an American singer and occasional actress known for her distinctive vocals in rock and pop music. This began in the mid-1960s as a backing singer, forming the husband-and-wife team of Delaney & Bonnie, and continuing to the present day as a solo artist. Bramlett was born in Alton, Illinois. She started her musical career at the age of thirteen as a backup singer for blues acts such as Fontella Bass, Albert King, and Little Milton. The marriage broke up in 1972[ since then she has been a solo artist.

She made history as the first Caucasian female to sing with Ike and Tina Turner as one of the "Ikettes". She eventually moved to Los Angeles, where she met fellow singer Delaney Bramlett in 1967 at a bowling alley gig for his band, The Shindogs.

They were married within the week and are the parents of singer Bekka Bramlett, who was briefly a member of Fleetwood Mac in the 1990s. Bonnie was also the number one "gotta have" backup singer on albums by Joe Cocker, Carly Simon, Gregg Allman, Little Feat, Jimmy Hall, Steve Cropper, Jimmy Buffett, Dwight Yoakam and others.