James Walter Grimston, 1st Earl of Verulam, styled Lord Dunboyne from 1775 until 1808 and known as the 4th Viscount Grimston from 1808 to 1815, was a British peer and politician.
- Occupation
- politician
- Position held
- member of the 4th Parliament of the United Kingdom, member of the 2nd Parliament of the United Kingdom, member of the 3rd Parliament of the United Kingdom, Lord Lieutenant of Hertfordshire
- Citizenship
- United Kingdom of Great Britain and Ireland, Kingdom of Great Britain
- Born
- September 26, 1775
- Died
- November 17, 1845
