Molosser breeds:
Akbash Dog
Alano Español (Spanish Alano)
Alapaha Blue Blood Bulldog
Alpine Mastiff (extinct)
Alp Mastiff (Cane Garouf)
American Bulldog
American Bull Molosser
American Mastiff
American Pit Bull Terrier
American Staffordshire Terrier
Antebellum Bulldog
Anatolian Shepherd Dog
Appenzeller Sennenhund
Argentine Dogo
Bandog
Banter Bulldogge
Bergamasco
Bernese Mountain Dog (Berner Sennen
)
Boerboel (South-African Mastiff)
Boston Terrier
Boxer
Brazilian Bullmastiff
Broholmer
Bucciriscu Calabrese
Bulldog
Buldogue Campeiro
Bullmastiff
Bully Kutta (Pakistani Mastiff)
Ca de Bou (Perro de Presa Mallorquin, Mallorquin Bulldog, etc.) Cane Corso (Sicilian Brancheiro)
Cão da Serra da Estrela (Estrela Mountain Dog)
Cão de Castro Laboreiro
Cão de Fila de São Miguel
Cão de Fila da Terceira
Cão de Gado Transmontano
Catahoula Bulldog
Caucasian Shepherd Dog
Central Asia Shepherd Dog
Deltari Ilir (Sarplaninac)
Dosa Inu (Korean form of Tosa)
Doberman Pinscher
Dogue de Bordeaux (French Mastiff)
Dogo Argentino
Dogo Cubano
Dogo Guatemalteco
Dogo Sardesco Dutch Mastiff (An alternate name for a Pug, technically a misnomer from a genetic standpoint)
English Bulldog
English Mastiff (Mastiff)
Entlebucher Sennenhund (Entlebucher Mountain Dog)
Fila Brasileiro (Brazilian Mastiff)
Gran Mastin de Borínquen
Great Dane (German Mastiff)
Greater Swiss Mountain Dog(Grosser Schweizer Sennenhund)
Gull Terr
Hovawart
Himalayan Sheepdog
Indian Mastiff (Sindh Mastiff)
Kangal Dog
Kuvasz
Landseer (sometimes considered a colour variety of the Newfoundland)
Leonberger
Moscovskaya Storozhevaya Sobaka (Moscow Watchdog)
Neapolitan Mastiff
Nebolish Mastiff
Newfoundland
Olde Boston Bulldogge
Old Roman Bull-Dog
Olde English Bulldogge
Perro Cimarron
Perro de Presa Canario
Perro de Toro
Polish Tatra Sheepdog
Pyrenean Mastiff
Pyrenean Mountain Dog (Great Pyrenees)
Rafeiro do Alentejo
Rhodesian Ridgeback (African Lion Hound)
Rottweiler
Sage Koochee (Afghan Sheepdog)
Saint Bernard
Shar Pei
Spanish Mastiff
Saint Bernard (Alpine Mastiff)
Staffordshire Bull Terrier
Tibetan Kyi Apso (Bearded Tibetan Mastiff)
Tibetan Mastiff
Tosa Inu (Japanese Mastiff)
Valley Bulldog
Vucciriscu
Xochaso
