Monterrey (a city, the capital of Nuevo León, Mexico); Monterey (a city in California, United States); a town, the capital of Orense in Galicia, Spain; a town in Casanare department, Colombia
Montserrat (an island and overseas territory of the United Kingdom in the Caribbean); Montserrat (a mountain range in Catalonia, Spain, near Barcelona, the site of a monastery); a female given name transferred from the place name or from Catalan, shortened from María (de) Montserrat, a Roman Catholic epithet of the Virgin Mary as the patron of Catalonia
a characteristical surname; Moreno (a city and partido in Buenos Aires province, Argentina).; Moreno (a department in Santiago del Estero province, Argentina).
Meuse, Maas (a major river that flows about 901 km (560 mi) from France through Belgium and the Netherlands to the North Sea); Meuse (a department of Grand Est, France)
Moselle (a left tributary of Rhine, flowing through the departments of Vosges, Meurthe-et-Moselle and Moselle in northeastern France, through Luxembourg, and through the states of Rhineland-Palatinate and Saarland, Germany); Moselle (a department of Grand Est, France)