| Monceau-Saint-Waast | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Monceau-Saint-Waast (Nord).svg |
| Arrondissement: | Avesnes-sur-Helpe |
| Canton: | Aulnoye-Aymeries |
| Insee: | 59406 |
| Postal Code: | 59620 |
| Mayor: | Serge Guillaume[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Maubeuge Val de Sambre |
| Coordinates: | 50.1711°N 3.8556°W |
| Elevation M: | 153 |
| Elevation Min M: | 132 |
| Elevation Max M: | 171 |
| Area Km2: | 5.93 |
Monceau-Saint-Waast (in French pronounced as /mɔ̃so sɛ̃ va/) is a commune in the Nord department in northern France.[2]