| Le Plessis-Feu-Aussoux | |
| Commune Status: | Commune |
| Coordinates: | 48.7167°N 3.0333°W |
| Insee: | 77365 |
| Postal Code: | 77540 |
| Arrondissement: | Provins |
| Canton: | Fontenay-Trésigny |
| Mayor: | Isabelle Guyot[1] |
| Term: | 2022 - 2026 |
| Intercommunality: | CC Val Briard |
| Elevation Min M: | 93 |
| Elevation Max M: | 126 |
| Area Km2: | 5.59 |
Le Plessis-Feu-Aussoux (in French pronounced as /lə plɛsi fø osu/) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.
Inhabitants are called Ansoldiens.