- Nanmeyer, Bill1
- National Association of Rehabilitation Facilities (U.S.)1
- National Association of Secondary School Principals (U.S.)1
- National Council on Disability (U.S.)3
- National Federation of Nursing Specialty Organizations1
- National Federation of Republican Women1
- National Federation of the Blind1
- National Football League1
- National Organization for Women6
- National Organization for Women. Campus Coordinating Committee1
- National Organization on Disability (U.S.)3
- National Rehabilitation Hospital (Washington, D.C.)1
- Naval Petroleum Reserves in California (U.S.)6
- Nelson, Donald Marr, 1888-19596
- Nelson, Gaylord, 1916-20053
- Newport, Nason3
- Nichols, William F. (William Flynt), 1918-19881
- North, Oliver1
- Norton, Dana1
- O'Mahoney, Joseph C. (Joseph Christopher), 1884-19621
