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.

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.