Earls, Counts | Titles by Rank
- Counts of Merkenberg
- Counts of Merkenberg-Schalksburg
- Counts of Merle
- Counts of Merode
- Counts of Merode e do Sacro Império
- Counts of Merode-Groesbeek
- Counts of Merode-Montfort
- Counts of Merode-Westerloo
- Counts of Merseburg
- Counts of Mértola
- Counts of Merveldt
- Counts of Mesagne
- Counts of Mesnil du Buisson
- Counts of Mesquita
- Counts of Mesquita
- Counts of Mesquitela
- Counts of Mesquitela-a
- Counts of Mesros
- Counts of Messey
- Counts of Metternich-Winneburg-Beilstein
- Counts of Metz
- Counts of Meuron
- Counts of Meyer
- Counts of Middelbourg
- Counts of Mieres del Camino
- Counts of Milazzo
- Counts of Millesimo
- Counts of Minneskold
- Counts of Minucci
- Counts of Mirabeau
- Counts of Mirafiore
- Counts of Mirafiori
- Counts of Miraflores de los Ángeles
- Counts of Miramon
- Counts of Miranda del Castañar
- Counts of Miranda do Corvo
- Counts of Mirandola
- Counts of Mirbach
- Counts of Mirbach-Geldern-Egmond
- Counts of Mirbach-Harff
- Counts of Mirbach-Kosmanos
- Counts of Mirleau
- Counts of Mitry
- Counts of Mobéliard
- Counts of Moctezuma
- Counts of Modica
- Counts of Modrus
- Counts of Moita
- Counts of Molelos
- Counts of Molina de Herrera