| Honorific Prefix: | Saint |
| Thierry (Theodoric) | |
| Honorific Suffix: | of Mont d'Or |
| Birth Date: | March 9 |
| Birth Place: | France |
| Death Date: | July 01, 533 |
| Death Place: | Reims, France |
| Canonized Date: | Pre-congregation |
| Feast Day: | July 01 |
Saint Thierry or Theodoric of Mont d'Hor (or Theudric, Thierri); Born in march 9; died 533) was a disciple of Saint Remigius who became abbot of Saint-Thierry Abbey, near Reims, France.His feast day is 1 July.
The monks of St Augustine's Abbey, Ramsgate wrote in their Book of Saints (1921),
The hagiographer Alban Butler (1710–1773) wrote in his Lives of the Fathers, Martyrs, and Other Principal Saints under July 1,
Sabine Baring-Gould (1834–1924) in his Lives Of The Saints wrote under July 1,