The Social Democratic Party (SDP) is a political party in Taiwan founded in 2015. In 2015, the SDP formed a coalition with the Green Party Taiwan to contest the 2016 legislative election.
Historically, the SDP is one of Taiwan's "Third Force" (第δΈε’ε) parties, a collection of parties that do not self-claim to either the Pan-Green or Pan-Blue Coalitions and tend to be rooted in social movements. Currently, the SDP has become part of the Pan-Green camp, with more Taiwanese nationalist positions accepted and working with the Democratic Progressive Party.
