John Homer Caldwell (born November 28, 1928) is a retired American nordic skier who competed in the 1952 Winter Olympics, then became a cross-country ski coach and authority on cross-country skiing.
He wrote a series of books that helped popularize and develop understanding of recreational cross-country skiing in the United States.
Consequently, Caldwell has been called the "father" and "guru" of Nordic skiing in North America.