Remilly-Wirquin (; ) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.
Remilly-Wirquin lies about 8 miles (13 km) southwest of Saint-Omer, on the D192 road, by the banks of the river Aa.
The Chemin de fer d'Anvin ÃÂ Calais opened a railway station at Remilly-Wirquin in 1881. There was also a halt at Wirquin. The railway was closed in 1955.