Lilley is a small village and civil parish situated between Hitchin and Luton in Hertfordshire, England.

[2][3] Lilley stands on high ground: nearby Telegraph Hill is just over 600 feet above sea level.

According to tradition, Lilley was once the residence of John Kellerman, an alleged occultist described by Sir Richard Phillips as the "last of the alchemists.

closure and conversion of the Silver Lion leaves the Lilley Arms as the village's only pub.

The Icknield Way Path passes the edge of the parish on its 110-mile course from Ivinghoe Beacon in Buckinghamshire to Knettishall Heath in Suffolk.