| Rank | Country | Waterways |
| Malta | void |
| Marshall Islands | void |
| Mauritania | void |
| Mauritius | void |
| Mayotte | void |
33 | Mexico | 2,900 km (navigable rivers and coastal canals) (2007) |
| Micronesia, Federated States of | void |
86 | Moldova | 424 km (on Dniester and Prut rivers) (2007) |
| Monaco | void |
81 | Mongolia | 580 km note: only waterway in operation is Lake Hovsgol (135 km); Selenge River (270 km) and Orhon River (175 km) are navigable but carry little traffic; lakes and rivers freeze in winter, are open from May to September (2004) |
| Montenegro | void |
| Montserrat | void |
| Morocco | void |
84 | Mozambique | 460 km (Zambezi River navigable to Tete and along Cahora Bassa Lake) (2007) |
| Namibia | void |
| Nauru | void |
| Navassa Island | void |
| Nepal | void |
22 | Netherlands | 6,211 km (navigable for ships of 50 tons) (2006) |
| Netherlands Antilles | void |
| New Caledonia | void |
| New Zealand | void |
41 | Nicaragua | 2,220 km (including lakes Managua and Nicaragua) (2007) |
92 | Niger | 300 km (the Niger, the only major river, is navigable to Gaya between September and March) (2005) |
15 | Nigeria | 8,600 km (Niger and Benue rivers and smaller rivers and creeks) (2007) |
| Niue | void |
| Norfolk Island | void |
| Northern Mariana Islands | void |
52 | Norway | 1,577 km (2007) |
| Oman | void |
| Pacific Ocean | void |
| Pakistan | void |
| Palau | void |
71 | Panama | 800 km (includes 82 km Panama Canal) (2007) |
12 | Papua New Guinea | 11,000 km (2006) |
| Paracel Islands | void |
32 | Paraguay | 3,100 km (2007) |
14 | Peru | 8,808 km note: 8,600 km of navigable tributaries of Amazon system and 208 km of Lago Titicaca (2007) |
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This page was last updated on 29 November, 2008 |
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