The 2022–23 season is the 108th season of the Isthmian League, which is an English football competition featuring semi-professional and amateur clubs from London, East and South East England. The league operates four divisions, the Premier Division at Step 3 and three divisions, North, South Central and South East at Step 4 of the National League System. This was the fifth season since the former South Division was subdivided into the South Central and South East divisions. The league was also known as the Pitching In League under a sponsorship deal with Entain, formerly GVC Holdings.