St Leonard, Saint-Léonard or Saint-Leonard may refer to:

Saints

• Saint Leonard of Noblac (or of Limoges) (died c.559)
• Saint Leonard of Port Maurice (1676–1751)

Places

Canada

• Saint-Léonard, New Brunswick, town in Madawaska County, formerly named St. Leonard
• Saint-Léonard Parish, New Brunswick, formerly named St. Leonard Parish
• Saint-Léonard, Quebec, a former city and now a borough of Montreal, Quebec, Canada
• Saint-Léonard (electoral district), a federal electoral district in Quebec, Canada
• Saint-Léonard—Saint-Michel, a federal electoral district in Quebec, Canada
• Saint-Léonard—Anjou a former federal electoral district in Quebec, Canada

France

• Belloy-Saint-Léonard, France
• Saint-Léonard, a hamlet, part of the commune of Bœrsch, in the Bas-Rhin department
• Saint-Léonard, Gers
• Saint-Léonard, commune of the Angers department
• Saint-Léonard, Marne
• Saint-Léonard, Pas-de-Calais
• Saint-Léonard, Seine-Maritime
• Saint-Léonard, Vosges
• Saint-Léonard, commune of the Epiniac department
• Saint-Léonard-de-Noblat, commune of the Haute-Vienne department
• Saint-Léonard-des-Bois, commune of the Sarthe department
• Saint-Léonard-des-Parcs, commune of the Orne department
• Saint-Léonard-en-Beauce, commune of the Loir-et-Cher department

Switzerland

• Saint-Léonard, Switzerland

United Kingdom

• Berwick St. Leonard, Wiltshire
• Drayton St. Leonard, Oxfordshire

United States

• St. Leonard, Maryland, a place in Calvert County

Churches

• St Leonard, Eastcheap, London
• St Leonard, Foster Lane, London

In sport

• Patinoire Saint-Léonard, indoor sporting arena located in Fribourg, Switzerland