The 2021–22 Essex Senior Football League season was the 51st in the history of the Essex Senior Football League, a football competition in England. The proposed constitution for this season was published on 22 May 2021, based on allocations for Steps 5 and 6 announced by the FA five days earlier, and it was subject to appeal. The constitution was ratified at the league's annual general meeting (AGM) on 24 June.