Houplines (French pronunciation: [uplin]; Dutch: Opline) is a commune in the Nord department in northern France.

It is part of the Métropole Européenne de Lille.

[3] Adjoining the communal (village) cemetery is the Houplines Communal Cemetery Extension, a Commonwealth War Graves Commission maintained cemetery containing the graves of 466 identified casualties, 465 of them Commonwealth servicemen who died in the area around the village during the First World War.

Houplines maintains a partnership arrangement with the German community of Kirchhundem.

(Ennetières-en-Weppes, Houplines and Sailly-lez-Lannoy use the same arms.)