David Rainey Daines (born March 23, 1932) was the youngest federal judge in U.S. history—appointed at just 23 to the position of deputy United States commissioner in Territorial Anchorage Alaska during the Eisenhower administration. As of 2018, at 86, Daines is also likely the last surviving federal judge appointed during that administration, and continues practicing law more than 60 years after his service as commissioner.