Weir River (Manitoba)

The Weir River is a river in the Hudson Bay drainage basin in Census division 23 in Northern Manitoba, Canada. Its flows from Weir Lake to the Nelson River as a left tributary, 70 kilometres (43 mi) upstream of that river's mouth at Hudson Bay.

The eponymous settlement of Weir River with its Weir River railway station is located on the river at the point where it is crossed by the Hudson Bay Railway. The station is served by the Via Rail Winnipeg – Churchill train.