| Saint-Thomas-en-Argonne | |
| Commune Status: | Commune |
| Arrondissement: | Châlons-en-Champagne |
| Canton: | Argonne Suippe et Vesle |
| Insee: | 51519 |
| Postal Code: | 51800 |
| Mayor: | Daniel Gouelle[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 49.1864°N 4.8658°W |
| Elevation M: | 177 |
| Area Km2: | 4.43 |
Saint-Thomas-en-Argonne (in French pronounced as /sɛ̃ tɔmɑ ɑ̃n‿aʁɡɔn/; literally "Saint-Thomas in Argonne") is a commune in the Marne department in north-eastern France.[2]