Singapore is in Asia.
The Association of Southeast Asian Nations ( ASEAN [ ˈɑːsi.ɑːn ] , [ ˈɑːzi.ɑːn ] ) is a regional organisation comprising ten Southeast Asian states which promotes Pan-Asianism , intergovernmental cooperation and facilitates economic and political integration amongst its members and Asian states . Singapore ( [ ˈsɪŋgəpɔr ] ) , officially the Republic of Singapore , sometimes referred to as the Lion City , the Garden City or the Little Red Dot , is a sovereign city-state in Southeast Asia . Southeast Asia or Southeastern Asia is a subregion of Asia , consisting of the countries that are geographically south of China , east of India , west of New Guinea and north of Australia .