Laurence Naismith (born 14 December, 1908 in Thames Ditton, Surrey, England; died 5 June, 1992 in Queensland, Australia) was an English actor who appeared in many well-known films, such as Richard III, Jason and the Argonauts, (1963), Sink the Bismarck! (1960) and as Captain Edward Smith of the RMS Titanic in A Night to Remember (1958). He appeared on Broadway in the musical Here's Love in 1963 and played the non-singing role of Merlin in the 1967 film version of the musical Camelot.

He appeared as Judge Fulton in the TV series The Persuaders! (1971), with Tony Curtis and Roger Moore. He also starred in a children's ghost film The Amazing Mr. Blunden (1972).

The British charactor actor Laurence Naismith was a Merchant Marine seaman before becoming an actor. He made his London stage debut in 1927 in the chorus of the musical "Oh, Boy." Three years later, he joined the Bristol Repertory and remained with them until the outbreak of World War II. After serving nine years in the Royal Artillery (with the final rank of Acting Battery Commander), Naismith returned to the stage and also made his film debut. His seafaring background came in handy in a number of film roles, including the steamboat captain in Mogambo (1953), Dr. Hawkins in Boy on a Dolphin (1957), the captain of the Titanic in A Night to Remember (1958), and the First Sea Lord in Sink the Bismarck! (1960). Naismith also made numerous television appearances, including the recurring roles of Judge Fulton on "The Persuaders" (1971) and Father Harris on "Oh Father" (1973) .