Judith Amanda "Judy" Geeson (born 10 September 1948) is an English film, stage, and television actress. Her first major film appearance was as wayward teenager Pamela Dare in To Sir, with Love in 1967 alongside Sidney Poitier and popular singer Lulu. In the same year, she appeared in Berserk!. She became well-known as a result of a regular role in the BBC early-evening soap opera, The Newcomers. She also had a major role in the popular 1970s costume drama Poldark as Caroline Penvenen Enys.

Her other notable films include Here We Go Round the Mulberry Bush (1967), Prudence and the Pill, 10 Rillington Place, Doomwatch and Brannigan. In the TV series Danger UXB, she played the female lead, Susan Mount, opposite Anthony Andrews and had the lead role of Fulvia in Sci-Fi series Star Maidens.