| Poilcourt-Sydney | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Poilcourt-Sydney 08.svg |
| Arrondissement: | Rethel |
| Canton: | Château-Porcien |
| Insee: | 08340 |
| Postal Code: | 08190 |
| Mayor: | Christian Lagarde[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 49.4233°N 4.1025°W |
| Elevation M: | 63 |
| Area Km2: | 7.88 |
Poilcourt-Sydney (in French pronounced as /pwalkuʁ sidnɛ/) is a commune in the Ardennes department in northern France. It is named after the City of Sydney in Australia.