| Renno | |
| Commune Status: | Commune |
| Arrondissement: | Ajaccio |
| Canton: | Sevi-Sorru-Cinarca |
| Insee: | 2A258 |
| Postal Code: | 20160 |
| Mayor: | Xavier Luciani[1] |
| Term: | 2021 - 2026 |
| Coordinates: | 42.2114°N 8.8272°W |
| Elevation M: | 900 |
| Elevation Min M: | 717 |
| Elevation Max M: | 1507 |
| Area Km2: | 12.62 |
Renno is a commune in the Corse-du-Sud department of France on the island of Corsica.
Renno has a warm-summer mediterranean climate (Köppen climate classification Csb). The average annual temperature in Renno is . The average annual rainfall is with November as the wettest month. The temperatures are highest on average in August, at around, and lowest in January, at around . The highest temperature ever recorded in Renno was on 19 July 2023 and 1 August 2017; the coldest temperature ever recorded was on 11 February 2012.