Horsley may refer to:
- Horsley (name), a surname
- Hawker Horsley, a 1920s bomber aircraft produced by Hawker Aircraft
- places in Australia
- Horsley, New South Wales, a suburb in Wollongong, New South Wales, Australia
- Horsley Park, New South Wales, a suburb of Sydney, New South Wales, Australia
- places in the United Kingdom
- Horsley, Derbyshire, a village north of Derby, England
- Horsley, Gloucestershire, a hamlet and civil parish in Gloucestershire, England
- Horsley, Northumberland
- Horsley Cross, a hamlet in Essex, England
- Horsleycross Street, a hamlet in Essex England
- Horsley railway station, a railway station in East Horsley, Surrey, England
- East Horsley, a village in Surrey, England
- West Horsley, a village in Surrey, England
- Horsley'ed, often used as a verb, this terms is used colloquially to describe a situation where a friend or colleague violates the law of "dibs." For example, you have been Horsley'ed if you call shotgun and another friend jumps in the front seat.