| Honorific Prefix: | Saint |
| John Calybite | |
| Birth Date: | 5th century |
| Birth Place: | Constantinople (modern-day Istanbul, Turkey) |
| Death Place: | Constantinople |
| Feast Day: | 15 January |
| Attributes: | Beggar with a Gospel in his hand |
John Calybite (or John Calabites, Calibita, Chalybita, Calabytes, Kalabytes; died) was a Greek monk and hermit who is revered as a saint by several Christian denominations.He left home at a young age and for several years was a monk in Jerusalem. He returned home disguised as a beggar, and his parents did not recognize him, but gave him a hut to live in. He revealed himself to his mother when on his deathbed. His feast day is 15 January.
The monks of St Augustine's Abbey, Ramsgate, wrote in their Book of Saints (1921),
The Roman Martyrology includes:
The hagiographer Alban Butler (1710–1773) wrote in his Lives of the Primitive Fathers, Martyrs, and Other Principal Saints, under January 15,