William Earnest Beltz (April 27, 1912 – November 21, 1960) was an American politician and carpenter.

Born in Bear Creek on the Seward Peninsula,^[1] Haycock, Alaska, Beltz was an Iñupiaq, the Inuit of Alaska. Beltz worked as a carpenter, elected President of the Alaska Council of Carpenters,^[2] and lived in Unalakleet, Alaska. A Democrat, Beltz served as a member of the House in the Alaska Territorial Legislature in 1949. He then served in the Territorial Senate from 1951 until 1959, when Alaska became a state. Beltz served in the Alaska State Senate from 1959 until his death in 1960.^[1] Beltz died at Alaska Native Medical Center in Anchorage, Alaska from a cancerous brain tumor.^[3][4]

He was born to John Skyles Beltz who went to Alaska during the Yukon Gold Rush^[5] in 1897^[1] and Susie Goodwin Beltz. In 1953, Beltz married Arne Louise Bulkeley who was a U.S. Public Health Service village nurse in Unalakleet when they met; they had seven children.^[1]

In 1958 the first senate of the state of Alaska, unanimously elected Beltz president of the first senate of the state. Nome-Beltz Junior/Senior High School was named in his honor because of his efforts to provide education for rural residents.^[2][6] A conference room in the Thomas B. Stewart Legislative Office Building was named for Beltz.^[2]