Betty Marsden (February 24, 1919-July 18, 1998) was a British comedy actress. In the radio series Beyond Our Ken, she played Fanny Haddock, a takeoff of Fanny Cradock. In the radio series Round the Horne, she played a similar role (Daphne Whitethigh), as well as Lady Counterblast (née Clissold), Buttercup Gruntfuttock, Dame Celia Molestrangler, and others.
She was also in a number of Carry On films, including Carry On Camping (playing Terry Scott's wife with a braying laugh and jolly bossiness) and Carry On Regardless (playing Mata Hari).
She also appeared in the theatre.