Francis John Deig (September 20, 1909 – October 29, 1960) was an American athlete and sports coach.

[4] A 1936 article in the Star Tribune wrote "Down at Austin they are mighty proud of the St. Augustine high school team ...

The team is coached by Francis Deig, former Marquette university end who won All-American mention four years ago.

[8] In 1940, Deig was appointed the athletic director and head basketball coach at the University of St. Thomas, replacing Nic Musty.

[8] The 1946 St. Thomas football team went 4–3, placing second in the Minnesota Intercollegiate Athletic Conference (MIAC).

[1] He led them to the championship again in 1948 and for a third consecutive year in 1949, also helping them achieve a Cigar Bowl berth in 1949.