Creator
- Office of Student Affairs1
- Ogden, John C., 1940-20231
- Okaloosa-Walton Junior College1
- Okraski, Henry C. (Henry Carl), 1936-1
- Oliva Tobacco Company 1
- Olman, Abe1
- Olsen, Dale A. (Dale Alan)1
- Olsen, Jean Crosby1
- Olson, Oscar, 1921-1
- Omni Associates1
- Orlando Gay Chorus1
- Orlando Modern Quilt Guild 1
- Orlando Shakespeare Theater1
- Orlando Sisters of Perpetual Indulgence1
- Orsley, Burnie H.1
- Orsley, Hazel Armwood , -20081
- Osborn, Virginia, Dr.1
- Oscar, Marie, 1917-20041
- Osgood, George E.1
- Osterweil, John W.1