Γρηγόριος Ναζιανζηνός
- categories: vir , confessor , episcopus , doctor Ecclesiae
- date of birth: after 326, before 330
- date of death: around 389
- beatification: non-existence
- canonization: non-existence
- other Roman Martyrology days: 02.01., 25.01., 09.05.
- other memorial days: non-existence
- order: non-existence
- order founder: non-existence
- forenames: Gregorius
- surnames: non-existence
- epithets: o Θεολόγος