| Geishouse | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Geishouse (68).svg |
| Arrondissement: | Thann-Guebwiller |
| Canton: | Cernay |
| Insee: | 68102 |
| Postal Code: | 68690 |
| Mayor: | Claude Kirchhoffer[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Vallée de Saint-Amarin |
| Coordinates: | 47.8839°N 7.0608°W |
| Elevation M: | 730 |
| Elevation Min M: | 510 |
| Elevation Max M: | 1422 |
| Area Km2: | 7.28 |
Geishouse (in French pronounced as /ɡaisuz/; German: Geishausen; Swiss German; Alemannic; Alsatian: Gaishüse) is a commune in the Haut-Rhin department in Grand Est in north-eastern France.
Geishouse has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Geishouse is . The average annual rainfall is with December as the wettest month. The temperatures are highest on average in July, at around, and lowest in January, at around . The highest temperature ever recorded in Geishouse was on 24 July 2019; the coldest temperature ever recorded was on 9 January 1985.