Kenneth Joseph Rankin (February 10, 1940 – June 7, 2009) was an American singer and songwriter in the folk rock and singer-songwriter genres; he was influenced by jazz.

[3] Late night TV host Johnny Carson wrote the liner notes to Rankin's 1967 debut album, Mind Dusters, which included the single "Peaceful."

When Rankin worked with Alan Broadbent, Mike Wofford, and Bill Watrous, his music became more like jazz.

[2] Reflecting his interest in Brazilian music Rankin recorded the album Here in My Heart in Rio de Janeiro with jazz musicians Michael Brecker and Ernie Watts.

Beginning in 1972 Rankin was often the opening act or musical guest for Carlin's live performances.

Although Rankin had overcome his drug habit at Phoenix House, he returned to using cocaine while on tour with Carlin.