Boissy-Saint-Léger (French pronunciation: [bwasi sɛ̃ leʒe] ⓘ) is a commune in the Val-de-Marne department in the southeastern suburbs of Paris, France.

It is located 16.9 km (10.5 mi) from the center of Paris.

Boissy-Saint-Léger is served by Boissy-Saint-Léger station on Paris RER line A.

The station is the line's terminus.

This Val-de-Marne geographical article is a stub.