Singapore Democratic Alliance

The Singapore Democratic Alliance (abbreviated SDA; Chinese:新加坡 民主 联盟) is an oppositional party alliance in Singapore. It was founded in 2001 shortly before the parliamentary elections to form a bundled opposition to the People's Action Party ( Singapore) ( PAP). The alliance was led by Singapore People's Party under Chiam See Tong. The alliance consisted of the following parties:

  • Singapore Malay National Organization ( PKMS )
  • Singapore People's Party (SPP )
  • Singapore Justice Party ( SJP )
  • National Solidarity Party (NSP )

In 2007, the NSP triggered the alliance. In February 2011, Chiam was voted out as chairman, after which he announced that the SPP also splits.