Steve Vaillancourt (December 1, 1951 – March 27, 2017) was an American politician as a Republican member of the New Hampshire House of Representatives. He represented Hillsborough County District 15, the city of Manchester Ward 8. He served from 1996-2014 and since 2016. He served as a member of the Democratic Party, the Libertarian Party, and later the Republican Party. Vaillancourt also served as Manchester alderman for Ward 8 from 1999 to 2001 while serving in the State House of Representatives.
Vaillancourt was born in Middlebury, Vermont, and raised in the Champlain Valley region of Vermont. He attended Vergennes Union High School in Vergennes, Vermont. He graduated Summa Cum Laude from Plymouth State University with a B.A. in History in 1974. While at Plymouth, he was the play-by-play radio announcer for many of the sports, injecting comments and sports history into his broadcasts. He was sports director of WPCR radio.
He first ran for the New Hampshire House of Representatives in 1994 as a Democrat, but lost getting just 15% of the vote. He ran again in 1996 and won the seat with 19% of the vote, sharing the district with Democrat Raymond Buckley and Republican Francis Riley. In 1998, he won re-election with 20% of the vote. In 2000, He sought election to the New Hampshire State Senate, losing the Democratic primary to Dan O'Neil. After losing the primary, he sought re-election to the House as a Libertarian Party member and won with 18% of the vote..
Vaillancourt was successfully reelected to the House as a Republican in 2002 (21%), 2004 (25%), 2006 (19%), 2008 (19%), 2010 (25%), and 2012 (25%)..