The Rimpfischhorn (4,199 m) is a mountain in the Pennine Alps of Switzerland.

Along its north ridge lies the prominent sub-peak Grosser Gendarm (4107 m).

The first ascent of the mountain was by Leslie Stephen and Robert Living with guides Melchior Anderegg and Johann Zumtaugwald on 9 September 1859.

Their route of ascent was from Fluh Alp via the Rimpfischwänge.

This article about a mountain, mountain range, or peak located in Valais is a stub.