In Index of Names

• O’Meara, Dominic J. 35, 627, 631
• Olympias (born ca. 375 BC) 666
• Olympiodorus (alchemist) 131
• Olympiodorus (d. after 565) 32, 40, 41, 46–47, 50, 57, 63, 81, 131, 332, 336, 430, 440, 482, 486, 488, 501, 677
• Origen (185–253) 677