John Callahan (born December 23, 1953 in Brooklyn, New York) is an American actor, best known for his work as Edmund Grey on the popular soap opera All My Children.

While his work on soaps stretches back over twenty years (including stints on Falcon Crest and Santa Barbara), it is the role of Edmund that has brought him the most fame and acclaim. He has played on All My Children since his debut on the show in 1992.

For many years, he was married to AMC co-star Eva LaRue Callahan, but the couple is now in the process of separation. While the show tapes in New York City, the couple lives in La Quinta, California and commute each week for taping.

In 2005, Callahan was fired from AMC due to budget constraints. His last airdate is scheduled in the spring.