| Honorific-Prefix: | The Right Honourable |
| The Lord Rowton | |
| Order1: | Private Secretary to the Prime Minister of the United Kingdom |
| Term Start1: | 1868 |
| Term End1: | 1868 |
| Primeminister1: | Benjamin Disraeli |
| Term Start2: | 1874 |
| Term End2: | 1880 |
| Primeminister2: | Benjamin Disraeli (Earl of Beaconsfield from 1876) |
| Birth Name: | Montagu William Lowry-Corry |
| Birth Date: | 8 October 1838 |
| Birth Place: | London |
| Death Date: | 9 November 1903 |
| Nationality: | British |
| Alma Mater: | Trinity College, Cambridge |
Montagu William Lowry-Corry, 1st Baron Rowton, (8 October 1838 – 9 November 1903), also known as "Monty", was a British philanthropist and public servant, best known for serving as Benjamin Disraeli's private secretary from 1866 until the latter's death in 1881.
Born in Grosvenor Square, London,[1] Lowry-Corry was the second son of the Honourable Henry Lowry-Corry by his wife Lady Harriet, daughter of the 6th Earl of Shaftesbury. The social reformer, the 7th Earl of Shaftesbury, was his maternal uncle.[2] He was educated at Harrow and at Trinity College, Cambridge, and was called to the Bar in 1863.