| Saint-Jean-Lherm | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Jean-Lherm (Haute-Garonne).svg |
| Arrondissement: | Toulouse |
| Canton: | Pechbonnieu |
| Insee: | 31489 |
| Postal Code: | 31380 |
| Mayor: | Eric Cogo[1] |
| Term: | 2023 - 2026 |
| Coordinates: | 43.7044°N 1.6103°W |
| Elevation M: | 192 |
| Elevation Min M: | 146 |
| Elevation Max M: | 251 |
| Area Km2: | 7.92 |
Saint-Jean-Lherm (pronounced as /fr/; oc|Sent Joan de l'Èrm) is a commune in the Haute-Garonne department in southwestern France.
The inhabitants of the commune are known as Jeanlhermains in French.