Gustavus Hamilton-Russell, 10th Viscount Boyne (1931–1995), Irish peer and Lord Lieutenant of Shropshire
•
Gustav Hamilton (c. 1650–1691), Swedish born noble, Irish Governor of Enniskillen
•
Gustavus Hamilton, 1st Viscount Boyne (1642–1723), Vice-Admiral of Ulster, Irish MP for Donegal County 1692–1713 and Strabane
•
Gustavus Hamilton, 2nd Viscount Boyne (1710–1746), Irish peer, English MP for Newtown (Isle of Wight)
Hamilton | Hamilton, Ontario | Hamilton, New Zealand | Hamilton Tiger-Cats | Alexander Hamilton | Hamilton College | Hamilton College (New York) | Hamilton County, Ohio | Hamilton, Bermuda | Josh Hamilton | Booz Allen Hamilton | Hamilton, New York | Lewis Hamilton | Lee H. Hamilton | Hamilton County | Scott Hamilton | William Rowan Hamilton | Peter F. Hamilton | Linda Hamilton | George Hamilton | Andrew Hamilton | Hamilton Township | Gustavus Adolphus of Sweden | Green Township, Hamilton County, Ohio | Gavin Hamilton | Richard Hamilton | Laurell K. Hamilton | Laird Hamilton | Hamilton, Massachusetts | Hamilton East—Stoney Creek |
From father's side, In 1684, the English-held government, fearful of the Mac Sweeney clan, placed a garrison in Doe Castle, County Donegal, commanded by Major Gustavus Hamilton.