Mastiff, wanda kuma aka sani da Ingilishi Mastiff, ƙaƙƙarfan ƙaƙƙarfan kato ne. Nauyinsa ya shiga cikin tarihi mai cike da tashin hankali, kuma yana ɗaya daga cikin tsoffin nau'ikan karnuka a duniya. Ba wai kawai an yi amfani da su azaman nishaɗi ba a gasa mai zafi da sauran manyan dabbobi amma an yi amfani da su wajen yaƙe-yaƙe da ’yan Adam. A lokacin tafiyarsu, sun yi hulɗa da karnuka na gida, kuma an yi imanin cewa shi ne kakan St. Bernards, Rottweilers, Dogue de Bordeaux. da dai sauransu. Ya fara zuwa Amurka bayan yakin duniya na biyu, kuma tun daga lokacin farin jininsa ya karu. A cikin 2019, Ƙungiyar Kennel ta Amurka ta sanya shi a matsayin 29th mafi mashahuri nau'in karnuka a Amurka.
A ƙasa mun zaɓi 19 daga cikin gauraye masu ban sha'awa, waɗanda wasu sun shahara sosai wasu kuma wataƙila ba ku taɓa jin labarinsu ba.