Collection
- O'Shaughnessy Family Papers46
- O. A. Hawkins Collection of Virginiana, 1770-187726
- O. Henry Collection53
- ODU Monarch Community Alliance Records4
- ODYSSEY records3
- Oak Grove Baptist Church collection4
- Oak Hill Engraving, 18581
- Ocean View, Seaside, and Seaview Amusement Parks Collection38
- Ocean and Bird Art Prints2
- Octavius Brooks Frothingham Collection 18821
- Octavius Brooks Frothingham Collection n.d.1
- Office of Alumni Engagement records2
- Office of Alumni Relations Records1
- Office of Commonwealth Preparedness, 1999-2006268
- Office of Communications and Marketing audio and video collections549