Brian Emanuel Schatz (born October 20, 1972) is an American educator and politician serving as the senior United States senator from Hawaii, a seat he has held since 2012. A member of the Democratic Party, Schatz served in the Hawaii House of Representatives from 1998 to 2006, representing the 25th legislative district; as the chairman of the Democratic Party of Hawaii from 2008 to 2010; and as the 12th lieutenant governor of Hawaii from 2010 to 2012.

Schatz also worked as chief executive officer of Helping Hands Hawaii, an Oahu nonprofit social service agency, until he resigned to run for lieutenant governor of Hawaii in the 2010 gubernatorial election as Neil Abercrombie's running mate. He served as lieutenant governor until December 26, 2012, when Abercrombie appointed him to serve the rest of Daniel Inouye's U.S. Senate term after Inouye's death. Schatz was the youngest U.S. senator in the 112th Congress. He won the 2014 special election to complete the remainder of Inouye's Senate term with just under 70% of the vote, was reelected in 2016 with 73.6%, and again in 2022 with 71.2%.