The wire fox terrier, also known as wire hair fox terrier or wirehaired terrier, is a breed of dog, one of many terrier breeds. It is a fox terrier, and although it bears a resemblance to the smooth fox terrier, they are believed to have been developed separately. The wire fox terrier is a sturdy, balanced dog. Its rough, broken coat is distinctive. Coat color consists of a predominant white base with brown markings of the face and ears, and usually a black saddle or large splotch of color.