| Act of Parliament | |
 | |
| Long title | An Act for building a new Common Gaol and Session House, with Accommodations thereto, for the County of Surrey, and for disposing of the present County Gaol and the Ground thereto belonging. |
|---|---|
| Citation | 31 Geo. 3. c. 22 |
| Dates | |
| Royal assent | 13 May 1791 |
Horsemonger Lane Gaol (also known as the Surrey County Gaol or the New Gaol) was a prison close to present-day Newington Causeway in Southwark, south London. Built at the end of the 18th century, it was in use until 1878.