The Texas Heeler is a crossbred herding dog found mainly in Texas. They are a cross between the Australian Cattle Dog, and the Australian Shepherd, but can be a cross between the ACD and the Border Collie. They are bred mainly for their ability to work cattle. Found mainly on ranches in the past, they are currently being enjoyed in dog sports such as agility, frisbee and Rally Obedience.

Texas Heelers are medium-sized dogs that generally weigh between 25 – 50 pounds (11–23 kg). Their coats can vary in texture from short and smooth to medium length and color including black, blue merle or blue ticked with white and / or tan trim. They usually have smooth or medium length coats (1 to 3 inches). Texas Heelers are generally prick eared, but their ears may also fold over. They usually stand between 17-22 inches (43–61 cm) tall. Most have bobtails, but they can have long tails.