William Earnest Beltz (April 27, 1912 – November 21, 1960) was an Alaskan Native politician and carpenter. Born in Bear Creek on the Seward Peninsula, Haycock, Alaska, Beltz was an Iñupiaq, the Inuit of Alaska. Beltz worked as a carpenter, elected President of the Alaska Council of Carpenters, 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. Beltz died at Alaska Native Medical Center in Anchorage, Alaska from a cancerous brain tumor.