John Semple was a professional footballer from Scotland who played primarily as a defender. He began his career in the early 20th century and is best known for his time with Aberdeen FC, where he made a significant impact on the team's defensive lineup. Throughout his career, Semple also played for other clubs, including St. Johnstone and Dunfermline Athletic. His contributions to the game were recognized by fans and teammates alike, and he remains a notable figure in the history of Scottish football.