This is a list of members of the Parliament of Singapore who have been directly elected as representatives of an opposition party since 1968, having secured victory in electoral divisions.
In Singapore, the People's Action Party (PAP) has governed continuously since 1959, when Singapore was a British colony, maintaining a supermajority in Parliament. Consequently, the presence of opposition Members of Parliament (MP) has remained limited. Although Singapore became independent in 1965, it was not until 1981 that a non-PAP MP was directly elected in independent Singapore.
This list excludes non-constituency MPs (NCMPs). Group representation constituencies (GRCs) were introduced at the 1988 general election, while constituencies with a single MP were renamed single-member constituencies (SMCs). However, it was not until 23 years later that an opposition party achieved victory in one; the Workers' Party (WP) created that record by gaining Aljunied GRC from the PAP in the 2011 general election. The WP has remained the most prominent opposition force in Singaporean politics, with 19 distinct WP politicians having been directly elected to Parliament in post-independence Singapore.