| Country | Diplomatic representation in the US |
| Nepal |  chief of mission: Ambassador Shankar Prasad SHARMA chancery: 2131 Leroy Place NW, Washington, DC 20008 telephone: [1] (202) 667-4550 FAX: [1] (202) 667-5534 consulate(s) general: New York |
| Netherlands | chief of mission: Ambassador Regina "Renee" JONES-BOS chancery: 4200 Linnean Avenue NW, Washington, DC 20008 telephone: [1] (202) 244-5300, [1] 877-388-2443 FAX: [1] (202) 362-3430 consulate(s) general: Chicago, Los Angeles, Miami, New York consulate(s): Boston |
| Netherlands Antilles | none (represented by the Kingdom of the Netherlands); note - Mr. Jeffrey CORRION, Minister Plenipotentiary for Aruba at the Embassy of the Kingdom of the Netherlands |
| New Caledonia | none (overseas territory of France) |
| New Zealand | chief of mission: Ambassador Roy N. FERGUSON chancery: 37 Observatory Circle NW, Washington, DC 20008 telephone: [1] (202) 328-4800 FAX: [1] (202) 667-5227 consulate(s) general: New York, Santa Monica |
| Nicaragua | chief of mission: Ambassador (vacant); Charges d'Affaires Alcides J. MONTIEL Barillas chancery: 1627 New Hampshire Avenue NW, Washington, DC 20009 telephone: [1] (202) 939-6570, 6573 FAX: [1] (202) 939-6545 consulate(s) general: Houston, Los Angeles, Miami, New York, San Francisco |
| Niger | chief of mission: Ambassador Aminata Djibrilla Maiga TOURE chancery: 2204 R Street NW, Washington, DC 20008 telephone: [1] (202) 483-4224 through 4227 FAX: [1] (202)483-3169 |
| Nigeria | chief of mission: Ambassador (vacant); Charge d'Affaires Baba Gana WIKIL chancery: 3519 International Court NW, Washington, DC 20008 telephone: [1] (202) 986-8400 FAX: [1] (202) 775-1385 consulate(s) general: Atlanta, New York |
| Niue | none (self-governing territory in free association with New Zealand) |
| Norfolk Island | none (territory of Australia) |
| Northern Mariana Islands | void |
| Norway | chief of mission: Ambassador Wegger C. STROMMEN chancery: 2720 34th Street NW, Washington, DC 20008 telephone: [1] (202) 333-6000 FAX: [1] (202) 337-0870 consulate(s) general: Houston, New York, San Francisco |