1921–22 Southern Football League

The 1921–22 season was the 24th in the history of the Southern League. As in the previous season, the league was split into two sections, one for English clubs and one for Welsh clubs. Plymouth Argyle reserves won the English section, whilst Ebbw Vale won the Welsh section. Plymouth Argyle reserves were declared champions after defeating Ebbw Vale 3-0 in a championship play-off. Pontypridd and Bath City were the only two Southern League clubs to apply for election to the Football League, though neither was successful.

1921–22 Southern Football League

The 1921–22 season was the 24th in the history of the Southern League. As in the previous season, the league was split into two sections, one for English clubs and one for Welsh clubs. Plymouth Argyle reserves won the English section, whilst Ebbw Vale won the Welsh section. Plymouth Argyle reserves were declared champions after defeating Ebbw Vale 3-0 in a championship play-off. Pontypridd and Bath City were the only two Southern League clubs to apply for election to the Football League, though neither was successful.