The Union Party (Burmese: ပြည်ထောင်စုပါတီ, romanized: Pyidaungsu Pati) was the ruling political party in Burma in the late 1950s and early 1960s. Formed by a split in the Anti-Fascist People's Freedom League, it was initially known as the Clean Anti-Fascist People's Freedom League (Clean AFPFL) or Nu-Tin faction.