Fundulus kansae, commonly known as Northern plains killifish, is a species of fish in the family Fundulidae.

[2][3] Fundulus kansae inhabits the Great Plains region of the United States.

It can be found in the shallows of small rivers and ponds.

It has been found in Montana, Utah, Arizona, and Nevada, where it is considered non-native.

[5][6] The species is considered least concern by the IUCN due to it being abundant in many locations.