La Loi du nord ([la lwa dy nɔʁ], "The Law of the North"; also called La Piste du Nord, "The Northern Trail") is a 1939 French adventure drama film directed by Jacques Feyder who co-wrote screenplay with Alexandre Arnoux and Charles Spaak, based on novel "Telle qu'elle était de son vivant" by Maurice Constantin-Weyer.

The films stars Michèle Morgan, Pierre Richard-Willm and Charles Vanel.

It tells the story of an escaped prisoner, his woman secretary and two guardsmen in the Far North.

Helped by a French trapper who takes them for film-makers, they hide in Northern Canada.

But the corporal Dalrymple discovers their identity and hunts them, until Jacqueline dies exhausted by such a hard expedition.