- L. C. Angle, Jr., Collection3
- L. Claire Kincannon theatre collection94
- L. Jane Hastings Architectural Papers15
- Lacrosse Records,5
- LactAid, Inc., Collection2
- Laila W. Pearsall Personal Papers (SC-10)2
- Land Grants1
- Land Records of the MVLA1
- Lanier Garden Club Records1
- Larkspur Press Collection1
- Larry Jones, Collector, Postcards, Photographs, and Other Material1
- Larry Levis papers51
- Larry McBryde Collection on the John McLaren McBryde Family3
- Larry Schecker playbills and pamphlets collection12
- Larry Shaver, Collector, Isaac Asimov Collectibles1