John Jay Martin (August 9, 1916 – March 17, 1968) was a professional football player who played in the National Football League (NFL) from 1941 to 1945. Martin played for the Chicago Cardinals, Boston Yanks and "Card-Pitt", a team that was the result of a temporary merger between the Chicago Cardinals and the Pittsburgh Steelers. The teams' merger was a result of the manning shortages experienced league-wide due to World War II. He was released from "Card-Pitt" after the team's game against the Green Bay Packers, when it was discovered that John McCarthy could average 35 yards per punt. He then signed with the Boston Yanks.

• Forr, James (2003). "Card-Pitt: The Carpits" (PDF). Coffin Corner. Vol. 25, no. 3. Professional Football Researchers Association. Archived from the original (PDF) on October 22, 2012.