| Siarrouy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Siarrouy (65).svg |
| Arrondissement: | Tarbes |
| Canton: | Vic-en-Bigorre |
| Insee: | 65425 |
| Postal Code: | 65500 |
| Mayor: | Bernard Philippe Bats[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Adour Madiran |
| Coordinates: | 43.3217°N 0.0378°W |
| Elevation M: | 230 |
| Elevation Min M: | 240 |
| Elevation Max M: | 346 |
| Area Km2: | 6.2 |
Siarrouy (in French pronounced as /sjaʁwi/; Occitan (post 1500);: Siarroi) is a commune in the Hautes-Pyrénées department in south-western France.