Collection
- Hal Turner, Jr. Collection, 1930-20151
- Harold L. Glasser Collection, 1918-2007, Date acquired: 01/06/20111
- Harry Harrison collection, 1964-2004, Date acquired: 00/00/20031
- Harry Robinson Bird Migration Studies, Florida, 1998-2017, Date acquired: 09/28/20161
- Hasterlik-Hine collection, 1700-2000, Date accessioned: 2019-12-041
- Hazel Louis Bowman collection, bulk 1930-19481
- Helen Gordon Davis collection, 1976-2004, Date acquired: 01/00/1996, bulk 1976-19921
- Hemlock Society Papers, 1985 - 20121
- Henry Echezabal collection of Centro Asturiano research materials, 1903-2009, Date acquired: 03/00/20091
- Herbert and Betty Colker papers, 1935-1947, Date accessioned: 2011-01-261
- Hillsborough Tomorrow records, 1995-20051
- History of FGCU, 1993-20171
- Holocaust and Genocide ephemeral collection, 1934-20111
- Howard Schnellenberger Photographs Collection, 1998-20111
- Hugh M. Coachman, Jr. Collection, 1950-20211
- Iain Lawrence collection, 1970-20201
- International Programs Records, 1974–2005 (with some undated items)1
- Irene Riley Hart Collection, Circa 1978-20051
- J. Paul Hartman Slide Collection, 1605-2006, bulk 1905-19931
- J.L. Reed and Son photograph collection, 1938-20131