| Merlieux-et-Fouquerolles | |
| Commune Status: | Commune |
| Arrondissement: | Laon |
| Canton: | Laon-1 |
| Insee: | 02478 |
| Postal Code: | 02000 |
| Mayor: | Stéphanie Dumay-Gillet[1] |
| Term: | 2022 - 2026 |
| Intercommunality: | Picardie des Châteaux |
| Coordinates: | 49.5178°N 3.5056°W |
| Elevation M: | 84 |
| Elevation Min M: | 58 |
| Elevation Max M: | 183 |
| Area Km2: | 5.77 |
Merlieux-et-Fouquerolles (in French pronounced as /mɛʁljø e fukʁɔl/) is a commune in the Aisne department in Hauts-de-France in northern France.
The river Ailette forms all of the commune's southern border.