Collection
- Olive Campbell papers, 1897-1952, bulk 1906-19191
- Orchestral Dance Music Collection, 1890-19601
- Ormsby Family Collection, 1856-19331
- Palmer Family papers, 1924-19681
- Parsons collection of Peter Demens and the two St. Petersburgs (Florida and Russia), bulk 1890-20051
- Paul A.M. Dirac Papers, 1788-19991
- Paul Dosal Cuban Tourism collection, 1879-1961, Date acquired: 04/17/2015, bulk 1879- 19611
- Paul Guzzo papers, 2018-20201
- Paul and Mary Rosen Collection, Circa 1900-20001
- Pensacola Art Center Collection, 1919-1982, Date acquired: 08/00/19831
- Pensacola Police Department, 1909//1928, 1909-1928, Date acquired: 04/19/19791
- Penton, Frank, Papers, 1912-1981, Date acquired: 00/00/19811
- Peruvian Collections, 1910-19691
- Pfeiffer Family Papers, 1891-1963, Date acquired: 02/00/19841
- Philip Keyes Yonge Collection, 1907-1932, bulk 1907-19321
- Philip Sperling collection, 1942-1946, Date acquired: 2017-06-29, Date accessioned: 2017-07-111
- Philip Stockton May memoir, 1925-1965, Date acquired: 2018-07-02, bulk 1943-19481
- Phillip Weidling Collection, Circa 1912-19761
- Phipps Family papers, 1854-19591
- Photograph of Andrew J. Dains, Agnes Dains, Mattie Candall "Old Depot", Circa 1920-19301