Dan Sullivan, American politician, junior senator of Alaska
Daniel Scott Sullivan (born November 13, 1964) is an American politician and attorney serving as the junior United States senator for Alaska since 2015. He is a member of the Republican Party.

Sullivan was in active duty for the United States Marine Corps from 1993 to 1997, 2004 to 2006, and in 2009 and 2013. Between 1997 and 1999, he clerked for judges on the United States Court of Appeals for the Ninth Circuit and the Alaska Supreme Court. After working as an attorney in private practice in Anchorage, Alaska from 2000 to 2002, Sullivan moved to Maryland to work for the Bush administration; he worked with the National Economic Council and the National Security Council and later served as Assistant Secretary of State for Economic and Business Affairs. He was Alaska Attorney General from 2009 to 2010 and commissioner of the Alaska Department of Natural Resources from 2010 to 2013.

Sullivan ran in the 2014 election for the U.S. Senate seat held by Democratic incumbent Mark Begich. In August 2014, he won the Republican primary, defeating Alaska Lieutenant Governor Mead Treadwell and 2010 Senate nominee Joe Miller. Sullivan defeated Begich in the general election, 47.96% to 45.83%, a margin of 6,014 votes out of 282,400 cast. He was reelected in 2020, defeating independent challenger Al Gross by about 13 percentage points.