The 1920 College Football All-Southern Team consists of American football players selected to the College Football All-Southern Teams selected by various organizations for the 1920 Southern Intercollegiate Athletic Association football season.
Georgia and Georgia Tech both had claims to the SIAA championship.
The composite All-Southern eleven formed by the selection of 27 coaches and sporting writers culled by the Atlanta Constitution and Atlanta Journal included:
Bill Fincher received the most votes with 26.
Bold = Composite selection
* = Consensus All-American
† = Unanimous selection
C = composite All-SIAA selection of 27 coaches and sporting writers culled by the Atlanta Constitution and Atlanta Journal.
FA = selected by Frank Anderson, coach at Oglethorpe University.
CM = selected by Charley Moran, coach at Centre College.
X = selected by Xen C. Scott, coach at the University of Alabama.
S = selected by H. J. Stegeman, coach at University of Georgia.
JD = selected by James DeHart, assistant coach at University of Georgia.