1973–74 Sussex County Football League

The 1973–74 Sussex County Football League season was the 49th in the history of Sussex County Football League a football competition in England.

Division One
Division One featured 13 clubs which competed in the division last season, along with two new clubs, promoted from Division Two:
 * Portfield
 * Shoreham

Division Two
Division Two featured nine clubs which competed in the division last season, along with two new clubs, relegated from Division One:
 * Burgess Hill Town
 * Three Bridges