- R. Buckminster Fuller Collection, 1949/19785
- R. Harvey Chappell, Jr. Papers, 1950/1982137
- RMC Faculty, Staff, and Alumni Files, 1818/202428
- Rachel H. Thomas, Student, Memory Book Regarding Student Days at Marshall College, 1931/2011, bulk 1931/19391
- Racial and Ethnic Ephemera Collection, 1778/200510
- Rae Ann Puff Sinfonicron and Orchesis posters, 1972/19762
- Raleigh General Hospital Nurses Alumnae Association Records, 1940/20211
- Raleigh and Mercer Counties Photographs, 1870/2000, bulk 1910/19601
- Ralph Chesse papers, 1935/19751
- Ralph Chessé papers, 1935/19751
- Ralph Cohen papers and "New Literary History" records, 1948/201665
- Ralph Cohen papers, 1940/20135
- Ralph E. McCoy Collection, 1919/20014
- Ralph Edwin "Ted" Spears, Jr., Compiler, Battelle-MacLane-Mendel-Spears Family Collection, 1848/2001, bulk 1860/19501
- Randall S. Hawthorne Papers, 1935/2014, bulk 1980/200017