Leader of the United National Party
The United National Party is one of the oldest political parties in Sri Lanka. It has been the main ruling party in Sri Lanka on several occasions. The leader of the United National Party is the highest position in the party. The leader is appointed by the majority vote of the working committee of the party who meets at Sirikotha, when the position is vacant.
The party had seven leaders since 1947. Former President Ranil Wickremesinghe has been the leader of the UNP since 1994. Ruwan Wijewardene is the current deputy leader of the UNP.
| Name | Portrait | Province | Periods In Party Leadership | Highest Position Held |
| D. S. Senanayake | Western | 1947–1952 | Prime Minister | |
| Dudley Senanayake | Western | 1952–1953 | Prime Minister | |
| John Kotelawala | North Western | 1953–1956 | Prime Minister | |
| Dudley Senanayake | Western | 1956–1973 | Prime Minister | |
| J. R. Jayewardene | Western | 1973–1989 | President | |
| Ranasinghe Premadasa | Western | 1989–1993 | President | |
| Dingiri Banda Wijetunga | Central | 1993–1994 | President | |
| Ranil Wickremesinghe | Western | 1994–present | President |