The 2021–22 Southern Counties East Football League season was the 56th in the history of the Southern Counties East Football League, a football competition in England, and the sixth year the competition had two divisions, the Premier Division and Division One, at Steps 5 and 6 respectively in the English football league system. After the abandonment of the 2019–20 and 2020–21 seasons due to the COVID-19 pandemic in England, numerous promotions were decided on a points per game basis over the previous two seasons.