Bailleul (French pronunciation: [bajœl] ⓘ; Belle in Dutch) is a commune in the Nord department in northern France.

Bailleul is the birthplace of French filmmaker Bruno Dumont and served as the setting for his first two feature films.

During First World War, the area around Bailleul was at times heavily affected by the heavy fighting that German and Allied troops engaged in around the nearby Belgian town of Ypres.

During the German Spring Offensive in Operation Georgette from 13 April 1918, Bailleul with its old Flemish Town Centre was more than 90 percent destroyed.

A typical example of the architectural style, which was widespread throughout Flanders, is the town hall of 1932 with its bell tower.