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- Nader, George. George Nader Papers. Special Collections and University Archives. Tomas Rivera Library. University of California, Riverside.
- New York Review of Science Fiction. The New York Review of Science Fiction collection. Special Collections and University Archives. Tomás Rivera Library University of California, Riverside.
- Nickle, David and Karl Schroeder. Manuscript Collection. Merril Collection of Science Fiction, Speculation and Fantasy. Toronto Public Library.
- Nimoy, Leonard. Leonard Nimoy collection. Howard Gotlieb Archival Research Center. Boston University.
- Niven, Larry.
- Norman, John. John Norman Manuscript. Special Collections. University of Maryland, Baltimore County.
- Norton, Andre.
- Nye, Jody Lynn. Jody Lynn Nye Papers. SFWA Collection, Rare Books and Special Collections, Northern Illinois University.