The People's Participation Party (Korean: 국민참여당; Hanja: 國民參與黨; PPP) was a political party of South Korea. It was formed by many of the former members of the Uri Party after the death of former President Roh Moo-hyun. Rhyu Si-min was elected as Party Chairman on March 19, 2011. In March 2011 it had 45,335 members.^[3] For the April 27 by-elections, the People's Participation Party has cooperated with the Democratic Party to enter Lee Bong-su as the single opposition candidate for the Kimhae seat in the National Assembly of South Korea. On 5 December 2011, it merged into the Unified Progressive Party.

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• Rhyu Si-min, 유시민, former Minister of Health and Welfare and National Assembly MP
• Cheon Ho-sun, 천호선, former Speaker of the Blue House
• Lee Byeong-Wan, 이병완, former Chief of Staff of Presidents Kim Dae-jung and Roh Moo-hyun

• Politics of South Korea
• Lists of political parties
• Justice Party (South Korea)