Clarques (French pronunciation: [klaʁk]; Picard: Clarque) is a former commune in the Pas-de-Calais department in the Hauts-de-France region of France. On 1 January 2016, it was merged into the new commune Saint-Augustin. Its population was 309 in 2018.

A farming village situated 8 miles (13 km) south of Saint-Omer, on the D190 and D192 road junction. The A26 autoroute passes by the commune just 200 yards (180 m) away.

Historical population of Clarques

Year	1962	1968	1975	1982	1990	1999
Population	234	254	238	206	231	233
From the year 1962 on: No double counting—residents of multiple communes (e.g. students and military personnel) are counted only once.

• The church of St.Martin, dating from the seventeenth century.
• The remains of two abbeys: The Benedictine abbey of Saint-Jean-au-Mont, founded in 1080 by Hubert, Bishop of Thérouanne, was destroyed in 1537 during military operations and the community took refuge at Ypres. The other abbey was founded in 1131 as an Augustinian (Premonstratensian order) by Milon, Bishop of Thérouanne, which survived until the French Revolution.
• A watermill
• A chateau

The present chateau was built in the early 1780s by Augustin Titelouze de Gournay, a king's musketeer, before his marriage to Marie-Therese de Feuchin in 1788. The house was enlarged in 1905 by Joseph de Gournay from the plans of architect Lillois Vilain, adding the protruding wings.

• Communes of the Pas-de-Calais department