The Australian Cattle Dog, or simply Cattle Dog, is a breed of herding dog originally developed in Australia for droving cattle over long distances across rough terrain. This breed is a medium-sized, short-coated dog that occurs in two main colour forms. It has either brown or black hair distributed fairly evenly through a white coat, which gives the appearance of a "red" or "blue" dog. As with dogs from other working breeds, the Australian Cattle Dog is energetic and intelligent with an independent streak.

• Exhibits signs of pathology.
• Skull Length 17.6 cm (6.9 in)
• Skull Width 10.3 cm (4.1 in)
• Skull Height 9.3 cm (3.7 in)