John Caldwell is a retired professional footballer from Scotland, known for his role as a defender. He began his career at Celtic FC, where he made a significant impact before moving to other clubs, including Bristol City and St. Johnstone. Caldwell was recognized for his strong defensive skills and leadership on the field. Throughout his career, Caldwell also represented the Scotland national team, earning several caps. After retiring from professional play, he transitioned into coaching, sharing his knowledge and experience with younger players. His contributions to football have left a lasting legacy in the sport.