Incumbents

Governor:
- until 2 June: Sir John Fearns Nicoll
- 2 June-30 June: Sir William Goode (as Officer Administrating the Government)
- starting 30 June: Sir Robert Brown Black
Chief Minister: David Marshall
Colonial Secretary: Sir William Goode (till January 1955)
Chief Secretary: Sir William Goode (starting February 1955)

Events

1 January - The Singapore Telephone Board (STB) and Telephone Department (TD) are formed after the British Colonial Government terminated Oriental Telephone and Electric Company's licence, thus acquiring its assets. The STB takes control of domestic telephone lines, with the TD controlling trunk and international services.^[1]

2 April - Singapore held its first Legislative Assembly elections. The Singapore Labour Front (LF) won the elections, the first where a majority of seats were contested.^[2]^[3]^[4]
6 April - David Marshall became the first Chief Minister of Singapore.^[5]
7 April - The Ministry of Education is established.^[6]
23 April - The Hock Lee bus workers' strike began.

12 May - The Hock Lee strikes escalated into a riot, resulting in 4 fatalities.^[7]

1 July - The Central Provident Fund is formed as a savings scheme to support workers during retirement.^[8]

20 August - The Paya Lebar Airport is officially opened, replacing the Kallang Airport which opened on 12 June 1937.^[9]

8 September - The Van Kleef Aquarium is opened.^[10]^[11]
22 September - To deal with crimes, the Criminal Law (Temporary Provisions) Act is passed, allowing for detentions.

23 November - The administration of Cocos (Keeling) Islands is transferred to Australia after several delays.^[12]

10 December - The Asia Insurance Building is opened, then Southeast Asia's tallest building.^[13]
28-29 December - David Marshall represented the government of the Crown Colony of Singapore in the Baling Talks.

^ "Singapore Telecom goes public". NLB. Retrieved 30 June 2019.
^ "Singapore Labour Front is formed". NLB. Retrieved 15 July 2019.
^ "LEGISLATIVE ASSEMBLY GENERAL ELECTION 1955". Singapore Elections. Archived from the original on 29 August 2015. Retrieved 19 June 2018.
^ "1955 Legislative Assembly General Election". NLB. Retrieved 21 July 2019.
^ "David Marshall is appointed the first Chief Minister". NLB. Retrieved 21 July 2019.
^ "Ministry of Education is established". NLB. Retrieved 21 July 2019.
^ "Hock Lee bus strike and riot". NLB. Retrieved 21 July 2019.
^ "Central Provident Fund is introduced". NLB. Retrieved 21 July 2019.
^ "Paya Lebar Airport is officially opened". NLB. Retrieved 21 July 2019.
^ "Another fine landmark for Singapore". The Singapore Free Press (retrieved from NLB). 8 September 1955. Retrieved 20 October 2019.
^ "Van Kleef Aquarium". NLB. 14 May 1991. Retrieved 20 October 2019.
^ "Handover of Cocos (Keeling) Islands to Australia". NLB. Retrieved 30 May 2020.
^ "Asia Insurance Building is opened". NLB. Retrieved 21 July 2019.

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Dependencies, colonies and other territories	Bahrain Brunei Cocos (Keeling) Islands Colony of Aden Cyprus Kuwait