Monsieur is a 1964 French-Italian-West German comedy film directed by Jean-Paul Le Chanois and starring Jean Gabin, Liselotte Pulver and Mireille Darc.

Overwhelmed by the death of his wife, a rich Parisian banker called René Duchêne is walking towards the River Seine to throw himself in when he is accosted by a prostitute.

When she learns that her former mistress is dead, she reveals that the wife he adored had made him a laughing stock by her multiple adulteries.

Their employers are Edmond Bernadac, a rich and staid businessman, and his flighty new Swiss wife Elisabeth, a former air hostess who is fond of alcohol and men.

Their new butler rapidly becomes indispensable at smoothing over the continual problems which beset the household, one being that the son of the house immediately wants to marry Suzanne and has therefore to win the permission of her supposed father.