The name "Gregory" is the English form of Latin Gregorius, which was from the Late Greek name Γρηγοριος (Gregorios), derived from γρηγορος (gregoros) meaning "watchful, alert". This name was popular among early Christians, being borne by a number of important saints including Saint Gregory Thaumaturgus (3rd century), Saint Gregory of Nyssa (4th century), Saint Gregory of Nazianzus (4th century), and Saint Gregory of Tours (6th century). It was also borne by the 6th-century pope Saint Gregory I the Great, a reformer and Doctor of the Church, as well as 15 subsequent popes.
- Harry Potter and the Prisoner of Azkaban (video game) (PS2 version only)
- Harry Potter and the Half-Blood Prince (video game) (NDS version only)