Mexico is the largest country whose English name starts with the letter M.
Mexico covers about 1.96 million square kilometres, making it the largest sovereign country beginning with M in English. It is larger than Mongolia, at roughly 1.56 million square kilometres; Mali, at about 1.24 million; and Madagascar, at about 587,000. Mexico is also the world’s 13th-largest country by area, depending on the measurement convention used.
Its size comes with striking geographic variety. Mexico stretches between the Pacific Ocean and the Gulf of Mexico, includes the Baja California Peninsula and Yucatán Peninsula, and contains deserts, tropical forests, high plateaus and major mountain ranges. Its position between the United States and Central America also gives it an important role in North American geography.
The wording “English name” is essential: country names can differ between languages, transliteration systems and official titles. The comparison also assumes sovereign countries rather than territories or historical names. Among modern internationally recognized countries using their common English names, Mexico is the clear largest M-country.