Mongolia
total: 1,810 km
broad gauge: 1,810 km 1.520-m gauge (2008)
Montenegro
total: 250 km
standard gauge: 250 km 1.435-m gauge (electrified 169 km) (2007)
Morocco
total: 1,907 km
standard gauge: 1,907 km 1.435-m gauge (1,022 km electrified) (2008)
Mozambique
total: 4,787 km
narrow gauge: 4,787 km 1.067-m gauge (2008)
Namibia
total: 2,629 km
narrow gauge: 2,629 km 1.067-m gauge (2008)
Nepal
total: 59 km
narrow gauge: 59 km 0.762-m gauge (2008)
Netherlands
total: 2,896 km
standard gauge: 2,896 km 1.435-m gauge (2,064 km electrified) (2009)
New Zealand
total: 4,128 km
narrow gauge: 4,128 km 1.067-m gauge (506 km electrified) (2008)
Nigeria
total: 3,505 km
narrow gauge: 3,505 km 1.067-m gauge (2008)
Norway
total: 4,114 km
standard gauge: 4,114 km 1.435-m gauge (2,552 km electrified) (2009)