| Country | Australia |
| State | New South Wales |
| Region | Upper North Shore, Sydney |
| Location | North of Sydney CBD, at the junction of the Pacific Highway and Pennant Hills Road, near the Hornsby Plateau |
| Coordinates | 33.70° S, 151.10° E |
| Local Government Area | Hornsby Shire |
| Founded | 1880s (as a railway town) |
| Original Name | Hornsby (named after police constable Samuel Henry Hornsby) |
| Elevation | ~190 m |
| Population | Approx. 23,000 (Hornsby suburb; shire ~150,000) |
| Area | Approx. 7 sq km (suburb) |
| Time Zone | AEST (UTC+10:00), AEDT (UTC+11:00 in summer) |
| Postcode | 2077 |
| Major Waterways | Berowra Creek (nearby), Hawkesbury River (regional) |
| Top Attractions | Westfield Hornsby, Hornsby Water Clock, Lisgar Gardens, Berowra Valley National Park, Hornsby Park redevelopment area. |
| Demonym | Hornsby residents |
| Main Industries | Retail, education, healthcare, professional services |
| Nearest Airport | Sydney Kingsford Smith Airport (SYD) |
| Website | https://www.hornsby.nsw.gov.au |