The Entlebucher Sennenhund or Entlebucher Mountain Dog is the smallest of the four Sennenhunds a dog type that includes four regional breeds. The name Sennenhund refers to people called Senn herders in the Swiss Alps. Entlebuch is a municipality in the canton of Lucerne in Switzerland. The breed is also known in English as the Entelbuch Mountain Dog Entelbucher Cattle Dog and similar combinations.