Social Democratic Party (Papua New Guinea)

The Social Democratic Party is a political party in Papua New Guinea. It was founded in June 2010 by Port Moresby Governor Powes Parkop.

It won three seats at the 2012 election: Parkop (National Capital District Provincial), Justin Tkatchenko (Moresby South Open) and Joseph Yopyyopy (Wosera-Gawi). It supported the government of Prime Minister Peter O'Neill, and Tkatchenko was appointed as Minister for Sport. Yopyyopy later defected to the United Resources Party, while Tkatchenko joined the People's National Congress.

As of June 2023, the party has 4 seats in the National Parliament.