| Thornbury | |
|---|---|
| Former county constituency for the House of Commons | |
| County | Gloucestershire |
| Major settlements | Thornbury |
| 1885–1950 | |
| Seats | One |
| Created from | West Gloucestershire |
| Replaced by | Stroud & Thornbury |
Thornbury was a county constituency centred on the town of Thornbury in Gloucestershire. It returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post voting system.