| Morgny-en-Thiérache | |
| Commune Status: | Commune |
| Arrondissement: | Vervins |
| Canton: | Vervins |
| Insee: | 02526 |
| Postal Code: | 02360 |
| Mayor: | Hervé Leclercq[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Portes de la Thiérache |
| Coordinates: | 49.7603°N 4.0786°W |
| Elevation M: | 160 |
| Elevation Min M: | 147 |
| Elevation Max M: | 217 |
| Area Km2: | 6.99 |
Morgny-en-Thiérache (in French pronounced as /mɔʁɲi ɑ̃ tjeʁaʃ/, literally Morgny in Thiérache) is a commune in the Aisne department in Hauts-de-France in northern France.