The Bras du Nord is a tributary of the Sainte-Anne River flowing in the town of Saint-Raymond, in the MRC of Portneuf, in the administrative region of Capitale-Nationale, in Quebec, in Canada.

The Bras du Nord is mainly served by the rang Saguenay road which runs on the east bank of the river.

The Bras du Nord rises at the confluence of the rivers Sainte-Anne Ouest and Neilson (altitude 199 metres (653 ft)).

From this confluence, the Bras du Nord flows for 35.6 kilometres (22.1 mi) to the south, generally in the forest zone, sometimes agricultural at the end of the route, with a drop of 65 metres (213 ft) according to the following segments: Upper course of the North Arm (segment of 23.9 kilometres (14.9 mi)) Lower reaches of the North Arm (segment of 11.7 kilometres (7.3 mi)) The Bras du Nord flows onto the northwest bank of the Sainte-Anne River at 1.0 kilometre (0.62 mi) downstream from the route 365 which passes through downtown Saint-Raymond.

This toponym appears on the plan of a part of the seigneury of Bourg-Louis carried out by the surveyor Ignace-Pierre Déry, in 1851.