Thelma Connell (30 June 1912 – 29 April 1976) was an English film editor.
Born Thelma Balle Dunaway in London, she began her career as a continuity girl, and then moved up to assistant editor on films such as The Life and Death of Colonel Blimp before taking the editing role for the first time in In Which We Serve (1943). Subsequent films included Green for Danger (1946), The Deadly Affair (1966) and Alfie (1966) for which she was nominated for a BAFTA. She was the original editor on the 1967 James Bond film You Only Live Twice but was replaced after the producers were unhappy with the running time of the film.
On television, she acted as producer on the ITC series The Adventures of Robin Hood.