- Kanawha Valley, Chemical Industry, Publications and Videos, 1979/19941
- Kappa Alpha Theta, Beta Lambda Chapter Records, 1921/2005, bulk 1930/19906
- Kappa Alpha, Alpha Zeta Chapter Records, 1915/1966, bulk 1948/20082
- Kappa Delta Composites, 1982/20173
- Kappa Kappa Gamma (Gamma Kappa Chapter) Records, 1923/201411
- Kappa Kappa Psi Records, 1958/2009, bulk 1979/200926
- Karen Hall Papers, 1980/20023
- Karin Rühle Architectural Papers, 1991/199513
- Katharine Gregg Papers, 1972/20034
- Katherine Diamond Architectural Collection, 1985/19951
- Katherine G. Johnson, Mathematician, Papers, 1800/2024, bulk 2016/202116
- Katherine Williams, Collector, Williams Family Papers, 1840/20054
- Kathleen Bonnie Crispin Worsham papers, 1860/201820
- Kathleen Cruise Architectural Papers, 1964/19955
- Kathryn Belle McGee Records regarding Rhododendron Girls State School at Jackson's Mill, 1941/2003, bulk 1941/19873