John "Jack" Traynor (born March 17, 1987, in St. Charles, Missouri) is an American former soccer player.

Traynor attended Francis Howell North High School in St. Charles, Missouri and played college soccer at the University of Notre Dame, where he was named to the College Soccer News `100 Freshmen to Watch' list, and was named a Big East Academic All-Star as a junior.

Traynor was drafted in the second round (29th overall) of the 2009 MLS SuperDraft by the New York Red Bulls, but was not offered a contract by the team.

After an unsuccessful trial with Aalesunds FK in Norway,[1] Traynor signed with Miami FC of the USL First Division.

He made his professional debut on April 26, 2009, coming on as a substitute in Miami's game against Rochester Rhinos.