1990 in Singapore
See also: 1989 in Singapore | 1991 in Singapore | List of years in Singapore
Events
- 10 March – The North South Line from Jurong East MRT Station to Choa Chu Kang MRT Station Opened
- 6 July – The East West Line of the Mass Rapid Transit (MRT) is completed.
- 22 November – Changi Airport Terminal 2 begins operation.
- 28 November – Goh Chok Tong becomes the second Prime Minister of Singapore.