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.
League table
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