1974–75 Sussex County Football League

The 1974–75 Sussex County Football League season was the 50th 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:
 * Three Bridges
 * Wigmore Athletic

Division Two
Division Two featured nine clubs which competed in the division last season, along with three new clubs:
 * Crowborough Athletic
 * Rye United, relegated from Division One
 * Shoreham, relegated from Division One