The West Sussex Football League is a football competition in England, formed in 1896.

It comprises 78 teams across eight divisions, of which the highest - the Premier Division - sits at level 12 of the English football league system. It is a feeder to the Southern Combination League Division Two.^[1]

Membership is not limited to clubs from West Sussex, with the league also including teams from neighbouring Surrey and Hampshire, although these are from places that are close to the county boundaries.^[1]

The West Sussex Football League operates one pre-season opener, three league cups and three charity cup competitions.^[1]

The pre-season curtain-raiser is the Walter Rossiter Trophy which is contested between the previous season's Premier Division champions and Centenary Cup winners. The current holder is Barns Green.

The league's main cup is the Centenary Cup which includes teams from the league's top three tiers - Premier Division, Championship and Division One. The current holders are Boys Club Old Boys.

The league's two other cups are the Tony Kopp Cup for the Northern section of Divisions Two and Three and the Bareham Trophy for the Southern and Central sections of the same divisions. The current holders of the Tony Kopp Cup is Henfield Reserves, with AFC Fernhurst current holders of the Bareham Trophy.

The remaining competitions within the league are the charity cups, these operate laterally across the northern and southern section of each division. These cups are:

The league ran eleven divisions up until 2015 when Division 5 Central was dropped. In 2016, Division One was split into North and South to increase back to eleven divisions.

In 2023/24 the Championship South was dropped and Division One was brought back in. Division Four was also dropped and Division Three Central was introduced.