Jeffrey Ovid Clyne (29 January 1937 – 16 November 2009) was a British jazz bassist (playing both bass guitar and double bass). He worked with Tubby Hayes and Ronnie Scott in their group the Jazz Couriers for a year from 1958, and was part of the group of musicians who opened Ronnie Scott's Jazz Club in November 1959. He was a regular member of Hayes' groups from 1961. Clyne died on 16 November 2009 from a heart attack.