| Rank | Country | Railways |
| Malta | void |
| Marshall Islands | void |
| Mauritania | 717 km standard gauge: 717 km 1.435-m gauge (2006) |
| Mauritius | void |
| Mayotte | void |
16 | Mexico | total: 17,665 km standard gauge: 17,665 km 1.435-m gauge (2006) |
| Micronesia, Federated States of | void |
85 | Moldova | total: 1,138 km broad gauge: 1,124 km 1.520-m gauge standard gauge: 14 km 1.435-m gauge (2006) |
| Monaco | void |
77 | Mongolia | total: 1,810 km broad gauge: 1,810 km 1.520-m gauge (2008) |
127 | Montenegro | total: 250 km standard gauge: 250 km 1.435-m gauge (electrified 169 km) (2006) |
| Montserrat | void |
75 | Morocco | total: 1,907 km standard gauge: 1,907 km 1.435-m gauge (1,003 km electrified) (2006) |
54 | Mozambique | total: 3,123 km narrow gauge: 2,983 km 1.067-m gauge; 140 km 0.762-m gauge (2006) |
67 | Namibia | total: 2,382 km narrow gauge: 2,382 km 1.067-m gauge (2006) |
| Nauru | void |
| Navassa Island | void |
131 | Nepal | total: 59 km narrow gauge: 59 km 0.762-m gauge (2006) |
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This page was last updated on 27 June, 2009 |
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