Highway 904 is a provincial highway in the north-west region of the Canadian province of Saskatchewan.

It travels from the Highway 4 / Highway 224 in the Meadow Lake Provincial Park to north boundary of park at the edge of the Cold Lake Air Weapons Range.

[2] It intersects Highway 951 within the park.

It is about 47 kilometres (29 mi) long.

[1] Highway 904 was once Highway 104, a northerly extension of Highway 4; it was replaced in the early 1980s.