1972–73 Essex Senior Football League

The 1972–73 season was the second in the history of Essex Senior Football League, a football competition in England.

The league featured eight clubs which competed in the league last season, along with three new clubs:
 * Brightlingsea United, joined from the Essex and Suffolk Border League
 * Coggeshall Town, joined from the Essex and Suffolk Border League
 * Maldon Town, transferred from the Eastern Counties League

Billericay Town were champions, winning their first Essex Senior League title.