Mongolia
conventional long form: none
conventional short form: Mongolia
local long form: none
local short form: Mongol Uls
former: Outer Mongolia

Montserrat
conventional long form: none
conventional short form: Montserrat

Morocco
conventional long form: Kingdom of Morocco
conventional short form: Morocco
local long form: Al Mamlakah al Maghribiyah
local short form: Al Maghrib

Mozambique
conventional long form: Republic of Mozambique
conventional short form: Mozambique
local long form: Republica de Mocambique
local short form: Mocambique
former: Portuguese East Africa

Namibia
conventional long form: Republic of Namibia
conventional short form: Namibia
former: German Southwest Africa, South-West Africa

Nauru
conventional long form: Republic of Nauru
conventional short form: Nauru
former: Pleasant Island

Navassa Island
conventional long form: none
conventional short form: Navassa Island

Nepal
conventional long form: Kingdom of Nepal
conventional short form: Nepal

Netherlands
conventional long form: Kingdom of the Netherlands
conventional short form: Netherlands
local long form: Koninkrijk der Nederlanden
local short form: Nederland

Netherlands Antilles
conventional long form: none
conventional short form: Netherlands Antilles
local long form: none
local short form: Nederlandse Antillen
former: Curacao and Dependencies