1912–13 Southern Football League

The 1912–13 Southern Football League season was the 19th in the history of the Southern League, a football competition in England. This season saw no First Division teams apply for election to the Football League. Plymouth Argyle won the league championship whilst Brentford and Stoke were relegated to Division Two. Cardiff City won the Division Two championship. They were promoted to Division One along with runners-up Southend United. No Second division teams left the league this season.

1912–13 Southern Football League

The 1912–13 Southern Football League season was the 19th in the history of the Southern League, a football competition in England. This season saw no First Division teams apply for election to the Football League. Plymouth Argyle won the league championship whilst Brentford and Stoke were relegated to Division Two. Cardiff City won the Division Two championship. They were promoted to Division One along with runners-up Southend United. No Second division teams left the league this season.