Matthew DeCourcey (born April 4, 1983) is a Canadian Liberal politician, who represented the riding of Fredericton in the House of Commons of Canada from 2015 until 2019.

[2] DeCourcey first became involved in politics during his studies at St. Thomas University, volunteering for Paul Martin's successful federal Liberal leadership bid in 2003.

[3] He spent five months in The Gambia on an international development initiative, and on his return to Canada he became the director of communications for New Brunswick's Child and Youth Advocate.

[4] DeCourcey became the Liberal Party's candidate in Fredericton during the 2015 federal election, and won, ousting Conservative incumbent and former cabinet minister Keith Ashfield.

DeCourcey was appointed to the House of Commons Special Committee on Electoral Reform, which was established due to the campaign promise made by the Liberal Party that 2015 would be the last Federal election decided under the first-past-the-post system.