Author
- Obsequens, Julius 1
- Odo, of Cheriton, d. 1247 1
- Oenomaus 1
- Olympichus Samius v3. Jh 1
- Olympiodorus, ca. 380-ca. 425 1
- Onasimus Cyprius 3./4. Jh. n. Chr. 1
- Onomacritus 1
- Ophelio Comicus 4. Jh. v. Chr. 1
- Oppian fl. 2nd cent 1
- Optatus, Saint, Bishop of Mileve active 4th century 2
- Orosius, Paulus 1
- Ovid 43 B.C.-17 or 18 A.D 1
- Paeanes 1
- Palaephatus 1
- Palladius, Rutilius Taurus Aemilianus 1
- Pamphila 1. Jh. n. Chr. 1
- Pamprepios 1
- Panarces 5. Jh. v. Chr. 1
- Panyassis Halicarnassensis 5. Jh. v. Chr. 1
- Pappus of Alexandria 1
