| Country | Disputes |
| Namibia | commission established with Botswana to resolve small residual disputes along the Caprivi Strip, including the Situngu marshlands along the Linyanti River; Botswana residents protest Namibia's planned construction of the Okavango hydroelectric dam on Popa Falls; managed dispute with South Africa over the location of the boundary in the Orange River; Botswana, Namibia, Zambia, and Zimbabwe boundary convergence is not clearly defined or delimited; Angolan rebels and refugees still reside in Namibia |
| Nauru | none |
| Navassa Island | claimed by Haiti |
| Nepal | joint border commission continues to work on small disputed sections of boundary with India; India has instituted a stricter border regime to restrict transit of Maoist insurgents and illegal cross-border activities |
| Netherlands | none |
| Netherlands Antilles | none |
| New Caledonia | Matthew and Hunter Islands east of New Caledonia claimed by France and Vanuatu |
| New Zealand | territorial claim in Antarctica (Ross Dependency) |
| Nicaragua | territorial disputes with Colombia over the Archipelago de San Andres y Providencia and Quita Sueno Bank region; the 1992 ICJ ruling for El Salvador and Honduras advised a tripartite resolution to establish a maritime boundary in the Gulf of Fonseca, which considers Honduran access to the Pacific; legal dispute over navigational rights of San Juan River on border with Costa Rica |
| Niger | Libya claims about 25,000 sq km in a currently dormant dispute; much of Benin-Niger boundary, including tripoint with Nigeria, remains undemarcated, and ICJ ad hoc judges have been selected to rule on disputed Niger and Mekrou River islands; Lake Chad Commission continues to urge signatories Cameroon, Chad, Niger, and Nigeria to ratify delimitation treaty over the lake region, which remains the site of armed clashes among local populations and militias |
| Nigeria | ICJ ruled in 2002 on the entire Cameroon-Nigeria land and maritime boundary but the parties formed a Joint Border Commission to resolve differences bilaterally and have commenced with demarcation in less-contested sections of the boundary, starting in Lake Chad in the north; Nigeria initially rejected cession of the Bakasi Peninsula; the ICJ ruled on an equidistance settlement of Cameroon-Equatorial Guinea-Nigeria maritime boundary in the Gulf of Guinea, but imprecisely defined coordinates in the ICJ decision, the unresolved Bakasi allocation, and a sovereignty dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River all contribute to the delay in implementation; several villages along the Okpara River are in dispute with Benin; Lake Chad Commission continues to urge signatories Cameroon, Chad, Niger, and Nigeria to ratify delimitation treaty over lake region, which remains the site of armed clashes among local populations and militias |
| Niue | none |
| Norfolk Island | none |
| Northern Mariana Islands | none |
| Norway | Norway asserts a territorial claim in Antarctica (Queen Maud Land and its continental shelf); despite recent discussions, Russia and Norway continue to dispute their maritime limits in the Barents Sea and Russia's fishing rights beyond Svalbard's territorial limits within the Svalbard Treaty zone |