The 1921 College Football All-America team is composed of college football players who were selected as All-Americans by various organizations and writers that chose College Football All-America Teams in 1921. The only selector recognized by the NCAA as "official" for the 1921 season is Walter Camp, whose selections were published in Collier's Weekly. Additional selectors who chose All-American teams in 1921 included: Football World magazine, based on collected opinions of 267 coaches; Walter Eckersall of the Chicago Tribune; Jack Veiock, sports editor of the International News Service; and Norman E. Brown of the Central Press Association.

Consensus All-Americans

For the year 1921, the NCAA recognizes only Walter Camp's selections as "official" for purposes of its consensus determinations. Nevertheless, the NCAA's consensus All-America team does not mirror Camp's selections. The following chart identifies the NCAA-recognized consensus All-Americans and displays which first-team designations they received.

All-Americans of 1921

Ends

Tackles

Guards

Centers

Quarterbacks

Halfbacks

Fullbacks

Key

NCAA recognized selector for 1921 Other selectors Bold = Consensus All-American