Chee Soon Juan (simplified Chinese: 徐顺全; traditional Chinese: 徐順全; pinyin: Xú Shùnquán, born 20 July 1962) is a Singaporean politician. He is currently the leader of the Singapore Democratic Party (SDP).A figure in Singapore's political opposition, Chee has been arrested and jailed several times for his political activities, mainly for making speeches and staging public demonstrations without a police permit.