| Honorific-Prefix: | The Right Honourable |
| The Lord Thurlow | |
| Office1: | Member of the House of Lords |
| Status1: | Lord Temporal |
| Term Label1: | as an elected hereditary peer |
| Term Start1: | 6 February 2015 |
| Predecessor1: | The Lord Chorley |
| Birth Name: | Roualeyn Robert Hovell-Thurlow-Cumming-Bruce |
| Birth Date: | 13 April 1952 |
| Party: | Crossbench |
Roualeyn Robert Hovell-Thurlow-Cumming-Bruce, 9th Baron Thurlow (born 13 April 1952), is a British hereditary peer and chartered surveyor[1] who sits as a crossbench member of the House of Lords.
He was elected to sit in the House at a crossbench hereditary peers' by-election on 3 February 2015, following the resignation of Lord Chorley.[2]
He married Bridget Anne Julia Ismay Cheape on 5 May 1980, the daughter of Hugh Bruce Ismay Cheape, of Fossoway Lodge, Kinross. They have four children:
His ancestors include Mary Catherine Bolton (1791–1840), a notable actress, and her husband, Edward Hovell-Thurlow, 2nd Baron Thurlow (1781–1829), a minor poet.