| Aristomenis | |
| Name Local: | el|Αριστομένης |
| Type: | municipal unit |
| Periph: | Peloponnese |
| Periphunit: | Messenia |
| Pop Municunit: | 1696 |
| Pop Community: | 267 |
| Population As Of: | 2021 |
| Area Municunit: | 90.678 |
| Coordinates: | 37.0833°N 71°W |
| Licence: | ΚΜ |
Aristomenis (el|Αριστομένης) is a village and a former municipality in Messenia, Peloponnese, Greece. Since the 2011 local government reform it has been part of the municipality of Messini, of which it is a municipal unit.[1] The municipal unit has an area of 90.678 km2.[2] Its population was 1,696 in 2021.