Horsenden is a hamlet in Wycombe district, Buckinghamshire, England and is in the civil parish of Longwick-cum-Ilmer. It is approximately one mile West of Princes Risborough, seven miles south of Aylesbury and three miles south-west of Chinnor in Oxfordshire. The Icknield Way passes just to the north of the village from north-east to south-west, although there is no connecting road through the hamlet itself.