1977–78 Hellenic Football League

The 1977–78 Hellenic Football League season was the 25th in the history of the Hellenic Football League, a football competition in England.

Premier Division
The Premier Division featured 13 clubs which competed in the division last season, along with three new clubs, promoted from Division One:
 * Abingdon United
 * Didcot Town
 * Flackwell Heath

Division One
The Division One featured 12 clubs which competed in the division last season, along with 4 new clubs:
 * Hazells, relegated from the Premier Division
 * Lambourn Sports, joined from the North Berks Football League
 * Ruislip Town
 * Brackley Town, joined from the North Bucks & District Football League