I-Mastiff, eyaziwa nangokuthi i-English Mastiff, ingumdondoshiya omnene obabazekayo. Uhlobo lwakhe seludlule emlandweni oneziyaluyalu, futhi ungomunye wezinhlobo zezinja ezindala kakhulu emhlabeni. Ayengasetshenziswanga nje kuphela njengokuzijabulisa emiqhudelwaneni enyantisa igazi emelene nezinye izilo ezinkulu kodwa futhi ayesetshenziswa ezimpini ezimelene nesintu. Phakathi nohambo lwabo, bahlangana nezinja zendawo, futhi kukholakala ukuthi ungukhokho we-St. Bernards, Rottweilers, Dogue de Bordeaux. phakathi kwabanye abaningi. Waqala ukufika eMelika ngemva kweMpi Yezwe II, futhi kusukela ngaleso sikhathi ukuthandwa kwakhe kuye kwanda kakhulu. Ngo-2019, i-American Kennel Club yayibeka njengomhlobo wezinja wama-29 owaziwa kakhulu eMelika.
Ngezansi sikhethe amamiksi angu-19 athandeka kakhulu, amanye adume kakhulu kanti amanye okungenzeka awukaze uzwe ngawo.