2011–12 Essex Senior Football League

The 2011–12 season was the 41st in the history of Essex Senior Football League a football competition in England.

The season featured 18 clubs, 17 of which had competed in the previous season, along with one new club: Also, Mauritius Sports changed their name to Haringey & Waltham Development.
 * Sporting Bengal United, transferred from the Kent League

Witham Town were champions, winning their third Essex Senior League title and returned to the Isthmian League after three seasons in the Essex Senior League.