| Merlaut | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Merlaut (Marne).svg |
| Arrondissement: | Vitry-le-François |
| Canton: | Sermaize-les-Bains |
| Insee: | 51363 |
| Postal Code: | 51300 |
| Mayor: | Henry Noël Champenois[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.7619°N 4.6678°W |
| Elevation M: | 104 |
| Area Km2: | 5.04 |
Merlaut (in French pronounced as /mɛʁlo/) is a commune in the Marne department in north-eastern France.
The Chée forms most of the commune's north-eastern border, flows westward through the commune, then flows (at Vitry-en-Perthois) into the Saulx, which forms most of the commune's southern border.