The sturgeon chub (Macrhybopsis gelida) is a species of ray-finned minnow fish in the family Cyprinidae.

[2] The type species was collected in the Milk River in Montana, and described by Charles Frédéric Girard in 1856.

[3] The scales on the sturgeon chub's back and sides have a small ridge-like projection known as a "keel".

[7] The fish's color ranges from silvery-white on the belly to silvery sides, with a light-brown back.

[5] The body fins are triangular,[8] slightly rounded,[3] and straight-edged (unlike the sicklefin chub).

[9] The United States Fish and Wildlife Service (FWS) estimated in 2001 that it only inhabited about 59 percent of its former range.