| San Nicolao | |
| Commune Status: | Commune |
| Arrondissement: | Corte |
| Canton: | Castagniccia |
| Insee: | 2B313 |
| Postal Code: | 20230 |
| Mayor: | Marie-Thérèse Olivesi[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Costa Verde |
| Coordinates: | 42.375°N 9.5208°W |
| Elevation M: | 250 |
| Elevation Min M: | 0 |
| Elevation Max M: | 922 |
| Area Km2: | 7.73 |
San-Nicolao (French form) or San Nicolao (Italian form; Corsican: San Niculaiu or Corsican: San Niculau), is a commune in the Haute-Corse department, on the island of Corsica, France.
San Nicolao is located in the east side of the island.