[1][2] There are a number of stories about the breed's ancestry, the most commonly held story is the breed descends from dogs brought to southern Mississippi by European settlers, among these progenitor European dogs included Belgian Malinois.

[1] In this environment these dogs were bred into their current form as a popular cur-type hunting dog, and from Mississippi they spread to the mountains of Kentucky, Missouri, North Carolina and Tennessee; and eventually into the Big Thicket region of Southeast Texas.

The Black Mouth Cur is a medium to large sized, athletic, muscular breed of dog.

[1] The breed's head is broad and flat, they have drooped ears and a powerful, distinctively melanistic black muzzle.

[1][9] The Black Mouth Cur is an extremely active breed which requires a great deal of exercise.

[11][12] The Black Mouth Cur is used extensively for hunting throughout the Southern United States, the breed is also used as a herding dog.