Thomas Nelson "Nellie" Metcalf (September 21, 1890 – January 17, 1982) was an American football and basketball player, track athlete, coach of football and track, professor of physical education, and college athletics administrator.

From 1924 to 1933, Metcalf taught at Iowa State University in the physical education department and served as the school's athletic director.

At Chicago, he replaced Amos Alonzo Stagg, who was forced into retirement at the age of 70 after 40 years of service as the school's athletic director and head football coach.

[1] While at Oberlin College, Metcalf played tackle on the football team and was also a successful two miles runner on the track and field team, once holding a conference record in that event.

This biographical article relating to a college football coach first appointed in the 1910s is a stub.