William Hollis Long II (born August 11, 1955) is an American politician and auctioneer who served as the U.S. representative for Missouri's 7th congressional district from 2011 to 2023. The district includes much of the southwestern quadrant of the state and is anchored in Springfield. It also includes Joplin and Branson. A member of the Republican Party, Long was elected to fill the district's seat in 2010, succeeding Roy Blunt upon his election to the U.S. Senate. After Blunt announced that he would not run for reelection to the Senate in 2022, Long became a candidate in the 2022 race to succeed him, but lost the Republican primary to Eric Schmitt.