2017–18 Hellenic Football League

The 2017–18 Hellenic Football League season was the 65th in the history of the Hellenic Football League, a football competition in England.

The constitution for Step 5 and Step 6 divisions for 2017–18 was announced on 26 May 2017. Following some adjustments, the constitution for the Hellenic League was ratified at the league's AGM on 2 July.

Premier Division
Premier Division featured 15 clubs which competed in the division last season, along with five new clubs:
 * Abingdon United, promoted from Division One West
 * Fairford Town, promoted from Division One West
 * Wantage Town, relegated from the Southern League
 * Windsor, transferred from the Combined Counties League
 * Woodley United, promoted from Division One East

Division One East
Division One East featured nine clubs which competed in the division last season, along with five new clubs:
 * Henley Town, relegated from the Premier Division
 * Milton United, transferred from Division One West
 * Thame Rangers, promoted from Spartan South Midlands League Division Two
 * Virginia Water, promoted from the Surrey Elite Intermediate League
 * Wallingford Town, promoted from the North Berks League

Division One West
Division One West featured eleven clubs which competed in the division last season, along with four new clubs:
 * Ardley United, demoted from the Premier Division
 * Headington Amateurs, transferred from Division One East
 * Kidlington reserves, promoted from Division Two West
 * Pewsey Vale, transferred from the Wessex League

Division Two East
Division Two East featured 5 clubs which competed in the division last season, along with 7 new clubs:
 * Abingdon Town
 * Abingdon United development, transferred from Division Two West and changed name form Abingdon United reserves
 * Chinnor reserves, from Oxfordshire Senior League
 * London Rangers
 * Long Crendon
 * Thame Rangers development
 * Virginia Water reserves

Division Two West
Division Two West featured 7 clubs which competed in the division last season, along with 5 new clubs:
 * Bishop's Cleeve development
 * Carterton, dropped from Premier Division
 * Cheltenham Saracens reserves
 * Clanfield reserves, rejoined the League
 * Newent Town, joined from the Gloucestershire Northern Senior League