| Laroche-Saint-Cydroine | |
| Commune Status: | Commune |
| Coordinates: | 47.9661°N 3.485°W |
| Insee: | 89218 |
| Postal Code: | 89400 |
| Arrondissement: | Auxerre |
| Canton: | Migennes |
| Elevation Min M: | 77 |
| Elevation Max M: | 161 |
| Area Km2: | 8.95 |
Laroche-Saint-Cydroine (pronounced as /fr/) is a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France.
The village of Saint-Cydroine in the commune of Laroche-Saint-Cydroine is named after Saint Sidronius.It is said that Sidronius was martyred here by the Romans, and a spring here with miraculous powers was a place of pilgrimage in the Middle Ages.
The is an 11th- or 12th-century Romanesque church with an octagonal tower in the village dedicated to the saint.It was founded by the abbey of La Charité-sur-Loire.
The commune is served by trains at Laroche-Migennes station.