狼狗是狗和狼交配所得的动物。因为从生物学的角度讲狗和狼属于学名为Canis lupus的同一个物种，因此狼狗与骡子不同，并非杂种，故牠们具生育能力。在古代，狼狗只会因母狗在发情期时逃走与公狼交配而得到。现时主要的狼狗品种有：

A wolfdog (also called a wolf–dog hybrid or wolf hybrid) is a canid hybrid resulting from the hybridization of a domestic dog (Canis lupus familiaris) to one of four other Canis species, the gray (Canis lupus), eastern timber (Canis lycaon), red (Canis rufus), and Ethiopian wolves (Canis simensis).