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Bukit Batok
Single Member constituency for theParliament of Singapore
Region	West Region, Singapore
Electorate	29,950
Current constituency
Created	1972; 53 years ago (1972)
Seats	1
Party	People's Action Party
Member	Constituency abolished
Town Council	Jurong–Clementi
Reformed	2015
Reformed from	Jurong GRC
Merged	1997, 2025
Merged to	Jurong East–Bukit Batok GRC (2025)

Bukit Batok Single Member Constituency was asingle-member constituency (SMC) inwesternSingapore. At abolition, it was managed by Jurong–ClementiTown Council.

Bukit Batok Constituency was created in1972 from parts of the constituencies ofBukit Timah,Chua Chu Kang andBukit Panjang. It was renamedBukit Batok Single Member Constituency in 1988 after the creation ofgroup representation constituencies (GRCs) and lasted until the1997 general election.^[1]

In 2016, incumbent Member of Parliament (MP),David Ong from the governingPeople's Action Party (PAP), resigned after having an extramarital affair with 41 year-old Wendy Lim, who is also a member and grassroots volunteer of the People's Action Party;^[2] aby-election was called to replace the empty seat.^[3] On 7 May,Murali Pillai from the PAP defeatedSingapore Democratic Party (SDP) secretary-general,Chee Soon Juan with a vote count of 61.2% to 38.8%.^[4]

On 11 March 2025, theElections Department Singapore updated the electoral divisions for the2025 general election. Bukit Batok SMC was merged intoJurong East–Bukit Batok GRC.^[5]

Note: TheElections Department does not include rejected votes when calculating the vote shares of candidates. Hence, all candidates' vote shares will total to 100% at any given election (may not appear so in multi-way contests due to rounding).

General Election 1976^[8][9]

Party		Candidate	Votes	%	±%
	PAP	Chai Chong Yii	12,216	84.57	10.79
	SJP	Sulaiman Jaffar	2,229	15.43	N/A
Majority			9,987	69.14	21.6
Total valid votes			14,445	96.88	0.28
Rejected ballots			465	3.12	0.28
Turnout			14,910	95.27	1.72
Registered electors			15,650		7.46
	PAPhold		Swing	10.79

General Election 1980^[10][11]

Party		Candidate	Votes	%	±%
	PAP	Chai Chong Yii	Unopposed
Registered electors			18,275		16.77
	PAPhold

General Election 1984^[12][13]

Party		Candidate	Votes	%	±%
	PAP	Chai Chong Yii	14,767	78.27	N/A
	UPF	Tan Jue Kit	4,099	21.73	N/A
Majority			10,668	56.54	N/A
Total valid votes			18,866	96.23	N/A
Rejected ballots			740	3.77	N/A
Turnout			19,606	94.21	N/A
Registered electors			20,812		13.88
	PAPhold		Swing	N/A

General Election 1988^[14][15]

Party		Candidate	Votes	%	±%
	PAP	Ong Chit Chung	12,873	55.94	22.33
	SDP	Kwan Yue Keng	10,139	44.06	N/A
Majority			2,734	11.88	44.66
Total valid votes			23,012	96.88	0.65
Rejected ballots			381	3.12	0.65
Turnout			23,393	96.91	2.7
Registered electors			24,138		15.98
	PAPhold		Swing	22.33

General Election 1991^[16][17]

Party		Candidate	Votes	%	±%
	PAP	Ong Chit Chung	12,205	51.8	4.1
	SDP	Kwan Yue Keng	11,347	48.2	4.1
Majority			858	3.57	8.2
Total valid votes			23,552	97.86	0.98
Rejected ballots			515	2.14	0.98
Turnout			24,067	96.6	0.3
Registered electors			24,908		3.19
	PAPhold		Swing	4.1

By-election 2016^[20][21]

Party		Candidate	Votes	%	±%
	PAP	Murali Pillai	14,452	61.23	11.79
	SDP	Chee Soon Juan	9,150	38.77	12.39
Majority			5,302	22.46	24.18
Total valid votes			23,602	97.43	0.43
Rejected ballots			622	2.57	0.43
Turnout			24,192	94.03	0.21
Registered electors			25,727		4.99
	PAPhold		Swing	12.09

General Election 2020^[22][23]

Party		Candidate	Votes	%	±%
	PAP	Murali Pillai	15,500	54.80	6.43
	SDP	Chee Soon Juan	12,787	45.20	6.43
Majority			2,713	9.60	12.86
Total valid votes			28,287	98.15	0.72
Rejected ballots			533	1.85	0.72
Turnout			28,820	96.23	2.04
Registered electors			29,948		16.41
	PAPhold		Swing	6.43

• 2015 establishments in Singapore
• Singaporean electoral divisions
• 1972 establishments in Singapore
• 1997 disestablishments in Singapore
• 2025 disestablishments in Singapore
• Constituencies established in 1972
• Constituencies disestablished in 1997
• Constituencies established in 2015
• Constituencies disestablished in 2025

• Use dmy dates from February 2022
• Articles with short description
• Short description matches Wikidata
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