Collection
- Robert L. Glasser Collection, 1956-20161
- Robert L. Wilson transcript, 1939-2005, Date acquired: 06/23/2006, bulk 1939-19461
- Robert McKay transcript, 1941-2007, Date acquired: 02/12/2007, bulk 1941-19451
- Robert Olen Butler Writings, 1980-2004, bulk 1940-19781
- Robert Otto Bauer collection, 1941-2004, Date acquired: 2018-05-16, 2018-05-211
- Roberts City collection, 1920-2006, Date acquired: 00/00/20011
- Roger Luther Peters papers, 1945-2007, Date acquired: 05/21/2018, bulk 1945, 2002, 20071
- Rose Feinman Papers, 1938-20021
- Rural Protective Association, Inc., papers, 1970-20021
- Sam Lamar Collection, 1938-2005, bulk Mid- to late-1940s1
- Sanford Municipal Court Records, 1920-19721
- Seminole Boosters Materials, 2000-20011
- Senator Lee Constantine papers, 1990-20191
- Severo Sarduy Collection, bulk Date acquired: 09/28/20151
- Share Your Mercury Memories Time Capsule Collection, 1960-20031
- Shridhar K. Sathe Papers, 1980-20191
- Sir Leon Radzinowicz Papers, 1938-2003, Date acquired: 07/29/2013, bulk 1940-19651
- Southern Association of Colleges and Schools, Commission on Colleges (SACS-COC), application files, 2001-20071
- Southwest Florida Newspaper Collection, bulk 1920-20181
- Sports Club of Tampa Bay collection, 1962-2007, Date acquired: 00/00/20071