Dakota-Arm River is a provincial electoral district for the Legislative Assembly of Saskatchewan, Canada.

Arm River was originally created before the 2nd Saskatchewan general election in 1908 and has existed ever since.

The riding's name was changed back to Arm River for the 2016 general election.

[1] [2] For the 2024 general election, the riding was renamed Dakota-Arm River due to significant boundary shifts.

The district lost significant territory to Lumsden-Morse, Humboldt-Watrous, Kelvington-Wadena and Last Mountain-Touchwood, while gaining a much smaller (but more densely populated) area from Saskatoon Stonebridge-Dakota.