| Caëstre | |
| Commune Status: | Commune |
| Arrondissement: | Dunkerque |
| Canton: | Bailleul |
| Insee: | 59120 |
| Postal Code: | 59190 |
| Mayor: | Jean-Luc Schricke[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Flandre Intérieure |
| Coordinates: | 50.7589°N 2.605°W |
| Elevation M: | 38 |
| Elevation Min M: | 24 |
| Elevation Max M: | 62 |
| Area Km2: | 10.2 |
| Demonym: | Caestrois (es) |
Caëstre (in French pronounced as /kastʁ/; French Flemish: Kaester and Dutch: Kaaster) is a commune in the Nord department in northern France.[2]