1984–85 Southern Football League

The 1984–85 Southern Football League season was the 82nd in the history of the league, an English football competition.

Premier Division
The Premier Division consisted of 20 clubs, including 15 clubs from the previous season and five new clubs:
 * Two clubs promoted from the Midland Division:
 * Shepshed Charterhouse
 * Willenhall Town


 * Two clubs promoted from the Southern Division:
 * Crawley Town
 * Road-Sea Southampton


 * Plus:
 * Trowbridge Town, relegated from the Alliance Premier League

Midland Division
The Midland Division consisted of 19 clubs, including 16 clubs from the previous season and three new clubs:
 * Hednesford Town, joined from the West Midlands (Regional) League
 * Stourbridge, relegated from the Premier Division
 * Sutton Coldfield Town, relegated from the Premier Division

Southern Division
The Southern Division consisted of 20 clubs, including 17 clubs from the previous season and three new clubs:
 * Dorchester Town, relegated from the Premier Division
 * Gosport Borough, relegated from the Premier Division
 * Sheppey United, joined from the Kent Football League

Also, at the end of the previous season Hillingdon Borough was renamed Hillingdon.

At the end of the season Hillingdon merged with London Spartan League club Burnham to form a new club Burnham & Hillingdon, who took over a place in the Southern Football League.