| Election Name: | 1965 Northern Ireland general election |
| Country: | Northern Ireland |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1962 Northern Ireland general election |
| Previous Year: | 1962 |
| Previous Mps: | List of members of the 10th House of Commons of Northern Ireland |
| Elected Mps: | MPs elected |
| Next Election: | 1969 Northern Ireland general election |
| Next Year: | 1969 |
| Seats For Election: | All 52 seats to the House of Commons of Northern Ireland 27 seats were needed for a majority |
| Election Date: | 25 November 1965 |
| Leader1: | Terence O'Neill |
| Leader Since1: | 25 March 1963 |
| Party1: | Ulster Unionist Party |
| Leaders Seat1: | Bannside |
| Last Election1: | 34 seats, 48.8% |
| Seats1: | 36 |
| Seat Change1: | 2 |
| Popular Vote1: | 191,896 |
| Percentage1: | 59.1% |
| Swing1: | 10.3% |
| Leader2: | Eddie McAteer |
| Leader Since2: | 2 June 1964 |
| Party2: | Nationalist Party (Northern Ireland) |
| Leaders Seat2: | Foyle |
| Last Election2: | 9 seats, 15.1% |
| Seats2: | 9 |
| Popular Vote2: | 26,748 |
| Percentage2: | 8.2% |
| Swing2: | 6.9% |
| Leader3: | Tom Boyd |
| Leader Since3: | 1958 |
| Party3: | Northern Ireland Labour Party |
| Leaders Seat3: | Belfast Pottinger |
| Last Election3: | 4 seats, 25.4% |
| Seats3: | 2 |
| Seat Change3: | 2 |
| Popular Vote3: | 66,323 |
| Percentage3: | 20.4% |
| Swing3: | 5.0% |
| Leader4: | Gerry Fitt |
| Leader Since4: | 1964 |
| Party4: | Republican Labour Party |
| Leaders Seat4: | Belfast Dock |
| Last Election4: | Did not stand |
| Seats4: | 2 |
| Seat Change4: | 2 |
| Popular Vote4: | 3,326 |
| Percentage4: | 1.0% |
| Swing4: | New party |
| Leader5: | Gerry Quigley |
| Leader Since5: | 1965 |
| Party5: | National Democratic Party (Northern Ireland) |
| Leaders Seat5: | None |
| Last Election5: | Did not stand |
| Seats5: | 1 |
| Seat Change5: | 1 |
| Popular Vote5: | 15,206 |
| Percentage5: | 4.7% |
| Swing5: | New party |
| Leader6: | Albert McElroy |
| Leader Since6: | 1956 |
| Party6: | Ulster Liberal Party |
| Leaders Seat6: | Enniskillen (Lost) |
| Last Election6: | 1 seat, 3.6% |
| Seats6: | 1 |
| Popular Vote6: | 12,618 |
| Percentage6: | 3.9% |
| Swing6: | 0.3% |
| Map Size: | 470px |
| Prime Minister | |
| Posttitle: | Prime Minister after election |
| Before Election: | Terence O'Neill |
| Before Party: | Ulster Unionist Party |
| After Election: | Terence O'Neill |
| After Party: | Ulster Unionist Party |
The 1965 Northern Ireland general election was held on 25 November 1965. Like all previous elections to the Parliament of Northern Ireland, it produced a large majority for the Ulster Unionist Party. This was the last election in Northern Ireland in which one party won a majority of the vote. The Ulster Unionists increased their vote share largely due to a reduction in the number of uncontested seats, but also picked up two additional seats. Similarly, the Nationalist vote share decreased largely due to more of the seats in which they stood candidates being contested.
| 36 | 9 | 2 | 2 | 3 | |
| UUP | Nationalist | L | R | Oth |
|}All parties shown. The only independent candidate was elected unopposed.Electorate: 907,667 (563,252 in contested seats); Turnout: 57.6% (324,589).