Mexico
total: 17,665 km
standard gauge: 17,665 km 1.435-m gauge (2006)
Moldova
total: 1,138 km
broad gauge: 1,124 km 1.520-m gauge
standard gauge: 14 km 1.435-m gauge (2006)
Mongolia
total: 1,810 km
broad gauge: 1,810 km 1.524-m gauge (2006)
Montenegro
total: 250 km
standard gauge: 250 km 1.435-m gauge (electrified 169 km) (2006)
Morocco
total: 1,907 km
standard gauge: 1,907 km 1.435-m gauge (1,003 km electrified) (2006)
Mozambique
total: 3,123 km
narrow gauge: 2,983 km 1.067-m gauge; 140 km 0.762-m gauge (2006)
Namibia
total: 2,382 km
narrow gauge: 2,382 km 1.067-m gauge (2006)
Nepal
total: 59 km
narrow gauge: 59 km 0.762-m gauge (2006)
Netherlands
total: 2,797 km
standard gauge: 2,797 km 1.435-m gauge (2,064 km electrified) (2006)
New Zealand
total: 4,128 km
narrow gauge: 4,128 km 1.067-m gauge (506 km electrified) (2006)