Karl Hilmer "Pike" Johnson (September 30, 1896 – November 8, 1985) was a professional football player in the American Professional Football Association (later renamed the National Football League in 1922) for the Akron Pros. In 1920 he and the Pros were awarded the very first NFL Championship. Prior to his career in the APFA, Johnson played with the Massillon Tigers of the Ohio League. He received all-pro honors in 1917. He was also World War I Army veteran and Purple Heart recipient.