Saint-Léger-du-Bourg-Denis (French pronunciation: [sɛ̃ leʒe dy buʁ dəni]) is a commune in the Seine-Maritime department in the Normandy region in northern France.

Saint-Léger-du-Bourg-Denis is a light industrial suburban town surrounded by woodland and situated in the Roumois, just 3 miles (4.8 km) east of the centre of Rouen at the junction of the D42 and the D138 roads.

The current official name of the town derives from a mistaken etymology dating back to French Revolution.

Political authorities have retained and not reformed this quaint error to the present day.

Burdinus, a given name, gave rise to the patronymic surnames Bourdain and Bourdin, common in west central France.