James David Morrissey IV (born June 9, 1998) is an American football center for the New York Giants of the National Football League (NFL). He played college football at Pittsburgh.

Morrissey grew up in Huntingdon Valley, Pennsylvania and attended La Salle College High School. He was named All-Philadelphia Catholic League as a junior and as a senior, when he was also named All-City by the Philadelphia Daily News.^[1] Morrissey was lightly recruited coming out of high school and received no NCAA Division I Football Bowl Subdivision offers. He chose to enroll at the University of Pittsburgh as a preferred walk-on over offers from Lehigh, Bucknell and Colgate.^[2]

Morrissey walked-on to Pittsburgh's football team and redshirted his true freshman season. He was named the Panthers' starting center and awarded a scholarship going into his redshirt freshman season and started all 12 of the team's games.^[1] Morrissey started the first 11 games of his redshirt sophomore season before suffering a season-ending injury and was named third-team All-Atlantic Coast Conference (ACC).^[3] He was named first-team All-ACC as a redshirt junior.^[4] As a redshirt senior, Morrissey started all 11 of Pittsburgh's games, including one at right guard after an injuries to that position, and was named second-team All-ACC and was awarded the Burlsworth Trophy as the best player in Division I football who began his college career as a walk-on.^[5][6]