Monsieur Leguignon, Signalman (French: Monsieur Leguignon lampiste) is a 1952 French comedy film directed by Maurice Labro and starring Yves Deniaud, Jane Marken and Bernard Lajarrige. It was shot at the Boulogne Studios in Paris. The film's sets were designed by the art director Paul-Louis Boutié. It was based on a radio programme and was followed by a sequel Leguignon the Healer in 1954.
A signalman employed by the SNCF constantly has to deal with difficult situations in spite of his well-meaning efforts. After a dispute with a group of children who lay claim to some treasure discovered in a dilapidated shack that he uses, the matter ends up in court.