Matt Poskay (born January 13, 1984) is an American professional lacrosse player who played with the Boston Cannons and New York Lizards of Major League Lacrosse (MLL). Poskay attended Arthur L. Johnson High School (Clark, New Jersey), where he set a national high school record for goals scored in his career. He played his collegiate lacrosse at the University of Virginia, where he won collegiate national titles in both 2003 and 2006. He was part of the MLL championship team in 2011 with the Cannons. He was inducted into the New Jersey Lacrosse Hall of Fame in 2013, at the age of 29.