Gustavus Hamilton

Gustavus Hamilton may refer to:


 * Gustavus Hamilton, 1st Viscount Boyne (1642–1723), Vice-Admiral of Ulster, Irish MP for Donegal County 1692–1713 and Strabane
 * Gustavus Hamilton (politician) (c. 1685–1735), son of Gustavus Hamilton, 1st Viscount Boyne, Irish MP for Donegal County 1716–35
 * Gustavus Hamilton, 2nd Viscount Boyne (1710–46), Irish peer, English MP for Newtown (Isle of Wight)
 * Gustavus Hamilton (painter) (1739-75), Irish painter