Kilby is a village and civil parish in Leicestershire, England.

Kilby may also refer to:

Places Kilby Bridge, a hamlet in Leicestershire, England Kilby Correctional Facility, a prison in Alabama, United States Kilby Island and Kilby Reef, places in Antarctica Kilby Provincial Park, a park in British Columbia, Canada

Other uses Kilby (name) Kilby International Awards, a high-technology educational foundation