Houlle (French pronunciation: [ul]; West Flemish: Holne) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.^[3]

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Houlle Holne
Commune
The town hall of Houlle
Coat of arms
Location of Houlle
Houlle Show map of France Houlle Show map of Hauts-de-France
Coordinates: 50°47′48″N 2°10′25″E
Country	France
Region	Hauts-de-France
Department	Pas-de-Calais
Arrondissement	Saint-Omer
Canton	Saint-Omer
Intercommunality	Pays de Saint-Omer
Government
• Mayor (2020–2026)	Hervé Berteloot[1]
Area 1	6.52 km2 (2.52 sq mi)
Population  (2021)[2]	1,147
• Density	180/km2 (460/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	62458 /62910
Elevation	0–96 m (0–315 ft) (avg. 7 m or 23 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

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A village situated 5 miles (8 km) northwest of Saint-Omer, on the D207 road. "Houlle" is also the name of a small river close to the village, tributary of the Aa, included in the water management plan (fr:SAGE) of the Audomarois region.

Spirits from grain, flavoured with berries of the juniper tree, are distilled in Houlle, the Genièvre (juniper) of Houlle; this spirit is very close to the Dutch jenever and more distantly related to dry gin. This is drunk with the local speciality, (potjevleesch) and is used to refine Maroilles cheese.

• The church of St. John the Baptiste, dating from the twelfth century.
• Some 18th-century wells.

• Audomarois
• Communes of the Pas-de-Calais department