Gustavus Hamilton (politician)

Gustavus Hamilton (c. 1685 – 26 February 1735), styled The Honourable from 1715, was an Irish politician.

He was the second son of Gustavus Hamilton, 1st Viscount Boyne and his wife Elizabeth Brooke, daughter of Sir Henry Brooke. His younger brother was Henry Hamilton. In 1716, he entered the Irish House of Commons for Donegal County, the same constituency his father and his older brother Frederick had represented before. Hamilton sat as Member of Parliament until his death in 1735.

In January 1717, he married Hon. Dorothea Bellew, only daughter of Richard Bellew, 3rd Baron Bellew of Duleek. They had five daughters and two sons. Both sons Frederick and Richard succeeded successively as Viscount Boyne.