- N. L. (Neal) Gault, Jr. Papers (3)
- Nancy Hauser Dance Company and School Records (6)
- Narratives by Formerly Enslaved Peoples Collection (23)
- National Assessment of Juvenile Corrections Records (6)
- National Conference of Christians and Jews Records (215)
- National Council on Family Relations Records (2)
- National Federation of Settlements and Neighborhood Centers Records (95)
- National Guild of Community Music Schools Records (3)
- National Recreation Association Records (33)
- National Recreation and Park Association Records (2)
- National Sustainable Agriculture Oral History Project (40)
- Ned L. Huff Lantern Slide Collection (3378)
- New York City YMCA Building and Property Records (3)
- New York YMCA Annual Reports (226)
- New York YMCA Board of Directors Records (19)
- New York YMCA Photographs (13)
- New York YMCA Program and Event Records (25)
- New York YMCA Reports, Studies and Surveys (7)
- Newton Horace Winchell Papers (28)
- Norman E. Borlaug Papers (757)
