John Marshall Blust (born June 4, 1954) is a former Republican member of the North Carolina General Assembly, representing the state's sixty-second House district, including constituents in Guilford county. An attorney from Greensboro, North Carolina, Blust has previously served terms in both the state House and Senate. He is a lawyer and a former U.S. Army captain. Blust was defeated for reelection to his N.C. Senate seat by Kay Hagan, who would go on to be elected to the United States Senate. Blust did not seek re-election to the North Carolina General Assembly in 2018.