Mushkegowuk—James Bay (French: Mushkegowuk—Baie James) is a provincial electoral district in Ontario, Canada.

It elects one member to the Legislative Assembly of Ontario.

This riding was created from the northern portion of Timmins—James Bay by the Far North Electoral Boundaries Commission in 2017.

[1] The Legislative Assembly of Ontario approved the new riding on October 24, 2017.

[3] National Post columnist Josh Dehaas criticized of the new ridings of Mushkegowuk—James Bay and Kiiwetinoong as violating the principle of representation by population.