| Brownlow William Knox | |
| Office: | Member of Parliament for Great Marlow |
| Term Start: | 3 August 1847 |
| Term End: | 18 November 1868 |
| Alongside: | Thomas Peers Williams |
| Predecessor: | Renn Hampden Thomas Peers Williams |
| Successor: | Thomas Owen Wethered |
| Birth Date: | 1806 |
| Nationality: | British |
| Party: | Conservative |
| Parents: | Thomas Knox Emma Williams |
Brownlow William Knox (1806 – 14 March 1873)[1] was a British Conservative Party politician.
He was elected MP for Great Marlow in 1847 and held the seat until 1868.[2]