Irene Esther Ryan (née Irvine; September 10, 1909 – November 23, 1997) was an American geologist, aviator, and legislator during Alaska's history as both a United States territory and as a U.S. state. She was a member of the Alaska Territorial House of Representatives and of the Alaska State Senate. She was instrumental in the creation of the Alaska Oil and Gas Conservation Commission, which helped insure state revenue from oil and gas exploration done by outside entities.