2016 Bukit Batok by-election
7 May 2016
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| Registered | 25,727 | |||||||||||||||||||||
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| Turnout | 24,224 (94.16%) 0.08% | |||||||||||||||||||||
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On 7 May 2016 in Singapore, a parliamentary by-election was held in Bukit Batok Single Member Constituency (SMC) to replace David Ong, the previous Member of Parliament (MP) for the constituency, after he resigned from Parliament and the governing People's Action Party (PAP) following revelations of his extramarital affair. This by-election was the third of its kind in less than five years; two had previously occurred in 2012 and 2013.
On polling day, PAP candidate Murali Pillai defeated Chee Soon Juan, candidate for the Singapore Democratic Party (SDP) with 61.23% of the vote, a negative swing of almost 12%. Murali was sworn into Parliament two days later. As of October 2025, this was the most recent by-election in Singapore.