Author
- Olympichus Samius v3. Jh 1
- Olympiodorus, ca. 380-ca. 425 1
- Olympiodorus, the Younger, of Alexandria active 6th century 1
- Onasimus Cyprius 3./4. Jh. n. Chr. 1
- Onomacritus 1
- Ophelio Comicus 4. Jh. v. Chr. 1
- Oppian fl. 2nd cent 1
- Oppian of Apamea 1
- Optatus, Saint, Bishop of Mileve active 4th century 2
- Orosius, Paulus 3
- Ovid 43 B.C.-17 or 18 A.D 1
- Paeanes 1
- Paeon Amathusiacus v3. Jh. 1
- Palaephatus 1
- Palladius Bishop of Aspuna ca. 430 2
- Pamphila 1. Jh. n. Chr. 1
- Pamphilus Alexandrinus 2. Jh. v. Chr. 1
- Pamprepios 1
- Panarces 5. Jh. v. Chr. 1
- Panyassis Halicarnassensis 5. Jh. v. Chr. 1
