| Saint-Igeaux | |
| Native Name: | Sant-Ijo |
| Commune Status: | Commune |
| Coordinates: | 48.2728°N -3.1042°W |
| Insee: | 22334 |
| Postal Code: | 22570 |
| Arrondissement: | Guingamp |
| Canton: | Rostrenen |
| Mayor: | Claude Bernard[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Kreiz-Breizh |
| Elevation Min M: | 137 |
| Elevation Max M: | 221 |
| Area Km2: | 12.91 |
Saint-Igeaux (in French pronounced as /sɛ̃.t‿iʒo/;) is a commune in the Côtes-d'Armor département of Brittany in northwestern France.