- Kamawa-sa manuscript, 1920/19501
- Kanawha County (W. Va.) Court Records and Miscellaneous Papers, 1773/19333
- Kappa Alpha Theta, Beta Lambda Chapter Records, 1921/2005, bulk 1930/19903
- Kappa Alpha, Alpha Zeta Chapter Records, 1915/1966, bulk 1948/20082
- Kappa Kappa Gamma (Gamma Kappa Chapter) Records, 1923/20142
- Kate Gannaway Trent Collection, 1920/19262
- Katherine Anne Porter collection, 1921/19651
- Katherine Courtenay Johnston Collection, 1829/19461
- Katherine G. Johnson, Mathematician, Papers, 1800/2024, bulk 2016/20215
- Katherine Williams, Collector, Williams Family Papers, 1840/20058
- Kathleen Bonnie Crispin Worsham papers, 1860/20187
- Kathryn Cramer Morgan, Charles William Cramer Family Papers, 1876/19701
- Kathryn Eye Papers, 1920/19914
- Kathryn Fulkerson Diaries, 1920/19401
- Kathryn H. Stone Papers
1906-19932