Coordinates: 50°56′50″N 2°11′55″E / 50.9472°N 2.1986°E / 50.9472; 2.1986

Bourbourg (Dutch: Broekburg) is a commune in the Nord department in northern France. It is situated in the maritime plain of northern France, in the middle of a triangle formed by Dunkirk, Calais, and Saint-Omer.

There are a large number of historic sites to see, such as the former jail. Originally built in 1539 under Spanish rule, the three-storey 18th-century prison building in the main square includes several dungeons and strongrooms. Above the entrance door is a sundial with the motto Qua hora non putatis, part of a verse from the Bible, Luke 12:40, Et vos estote parati quia qua hora non putatis Filius hominis venit ("Be you then also ready: for at what hour you think not the Son of man will come.").

Other interesting old buildings include the Gothic church (Eglise Saint-Jean-Baptiste), parts of which date from the thirteenth century, and whose choir shelters a huge installation by Anthony Caro called "The Chapel of Light"; the old Fishmarket (halle au poisson) which dates from 1587 and has twice-weekly fresh fish markets; and a 16th-century fortified farmhouse, the Manoir du Withof.