Saint-Maximin may refer to several places:
- Saint-Maximin, Gard, a commune in the Gard department in southern France
- Saint-Maximin, Isère, a commune in the Isère department in south-eastern France
- Saint-Maximin, Oise, a commune in the Oise department in northern France
- Saint-Maximin-la-Sainte-Baume, a commune in the Var department in south-eastern France
- St. Maximin's Abbey, Trier, a Benedictine monastery in Trier in the Rhineland-Palatinate, Germany