The Intruder is a 1953 British drama film directed by Guy Hamilton and starring Jack Hawkins, George Cole, Dennis Price and Michael Medwin. The film is based on the 1949 novel by Robin Maugham called The Line on Ginger.

Post-war London is the backdrop including Belgravia, Covent Garden market, Loughborough Junction and Dulwich Hospital.

A contemporary critic commented that the film treated the subject "with intelligence, taste, and a feeling for the medium"; he also wrote "Medwin... gives a brilliant study of a good fellow gone wrong".