Louis Mead Treadwell II (born March 21, 1956) is an American politician. He served as the 11th Lieutenant Governor of Alaska from 2010 to 2014. Treadwell is the former Chair of the U.S. Arctic Research Commission serving from 2006 to 2010. He is a member of the Republican Party and was a candidate for the 2014 U.S. Senate election in Alaska.