Jeffrey Allen Ament (born March 10, 1963) is an American musician and songwriter who serves as the bassist for the American rock band Pearl Jam. He is considered to be one of the greatest rock bassists of all time.Along with Stone Gossard, Mike McCready, and Eddie Vedder, he is one of the band’s founding members, and is also known for his work prior to Pearl Jam with the 1980s Seattle-based grunge rock bands Green River and Mother Love Bone, and is particularly notable for his work with the fretless bass, upright bass, and twelve-string bass guitar. Ament is also a member of the bands Temple of the Dog, Tres Mts., Three Fish and RNDM.
In 2008, Ament released his first solo album, Tone. A second solo album, While My Heart Beats, followed in 2012. In 2018, he released his third solo album, Heaven/Hell.
Ament was inducted into the Rock and Roll Hall of Fame as a member of Pearl Jam on April 7, 2017.