The 1959 United Kingdom general election in Northern Ireland was held on 8 October with 12 MPs elected in single-seat constituencies using first-past-the-post as part of the wider general election in the United Kingdom.
The Ulster Unionists won all the seats in region. This was a net gain from the result at the previous election, although they held all seats in the region before the 1959 election was called: in Fermanagh and South Tyrone, Philip Clarke was unseated by petition and Robert Grosvenor was declared elected to the seat; in Mid Ulster, George Forrest had been elected in a by-election as an Independent Unionist, but subsequently joined the Ulster Unionists.
In the election as a whole, the Conservative Party, which included the Ulster Unionists, led by Harold Macmillan as Prime Minister, continued in a majority government.
- Brooke sat as the MP for Lisnaskea in the Northern Ireland Parliament.