General elections were held in Singapore on 22 December 1984 to elect members of Parliament. They were the seventh general elections since the introduction of self-government in 1959 and the fifth since independence in 1965. The number of parliamentary seats increased from 75 to 79 following adjustments to electoral boundaries. Out of the 79 constituencies, 49 were contested while the remaining 30 were won uncontested by the People's Action Party (PAP).

Although the entry of an opposition MP in post-independence Singapore first occurred at the 1981 Anson by-election, the 1984 general elections represented a watershed in the nation's political landscape. It was the first occasion since 1963 in which the PAP failed to secure an unbroken sweep of all seats, signalling a departure from its hitherto uninterrupted dominance. Of the 49 seats contested, the Workers' Party (WP) and the Singapore Democratic Party (SDP) won one each, with the WP retaining Anson and the SDP establishing a foothold in Potong Pasir. This election was also the first to introduce the Non-constituency Member of Parliament (NCMP) scheme, which initially provided for three seats. As the opposition secured two elected seats, one NCMP seat was offered, although no opposition member accepted the appointment as the scheme was initially viewed as a token gesture that undermined genuine electoral competition.

The PAP secured 64.83% of the valid votes and 77 of 79 seats, a landslide victory that reaffirmed its supermajority and political dominance. However, it also reflected a sharp 12.83% swing against the party, the largest in any general election to date and marked its lowest vote share since independence. Voter turnout in contested constituencies stood at 95%, remaining largely consistent with the preceding general election. It also marked the returning presence of women candidates since 1970 following the elections of Yu-Foo Yee Shoon, Dixie Tan and Aline Wong from the PAP, who made their debuts this election.

Background Graduate Mothers' Scheme In his 1983 National Day Rally speech, Prime Minister Lee Kuan Yew expressed concern that declining birth rates, combined with a large number of graduate women remaining single or marrying partners of lesser academic standing, could reduce Singapore's talent pool. In response, the PAP government introduced the Graduate Mothers' Scheme, offering incentives to encourage graduate women to marry and giving priority in top schools to the third child of graduate mothers.

The proposal sparked public outrage, particularly among female graduates, and Lee and proponents of the proposal faced accusations of elitism and even eugenics. The proposal proved sufficiently controversial that prominent PAP figures, including Deputy Prime Minister S. Rajaratnam and former cabinet minister Toh Chin Chye openly voiced their opposition to the scheme. Ultimately, the uproar over this proposal led to a swing of 12.9 percent against the PAP government in this election.

Central Provident Fund withdrawal age In March 1984, the Health Minister Howe Yoon Chong proposed raising the age for withdrawing Central Provident Fund (CPF) savings from 55 to 60 years, a move that sparked controversy. At a news conference on 26 March 1984, Howe explained that Singaporeans could not "rely solely on their children for support" in old age. The suggestion, which appeared in the 54-page report of the "Committee on the Problems of the Aged" that he chaired, was eventually abandoned. However, elements of the report were incorporated into the CPF Minimum Sum scheme, which allows workers to withdraw part of their CPF savings at age 55 while reserving a specified minimum sum that can only be accessed at the retirement age.

Non-Constituency Member of Parliament scheme The Non-Constituency Member of Parliament scheme (NCMP) was introduced in this election, allowing the best-performing unsuccessful opposition candidates who received at least 15% of the vote to be offered a seat if a single party won all the constituencies, with one NCMP seat subtracted for each opposition MP elected. Opposition parties criticised the scheme and initially boycotted it, arguing that it could mislead voters into believing they could have opposition representation without actually voting for them.

Timeline DateEvent4 DecemberDissolution of the 5th Parliament12 DecemberNomination Day22 DecemberPolling day25 February 1985Opening of 6th Parliament

Electoral boundaries

The creation of new constituencies reflected the rapid development of areas such as Ang Mo Kio, Tampines, Jurong East, Bedok and Jurong West as new towns, alongside other smaller developments. At the same time, several existing constituencies were dissolved, as shown in the table:

Constituency ChangesNew Constituencies Bo Wen Formed from Ang Mo Kio, Kebun Baru & Yio Chu Kang Changkat Formed from Tampines & Kaki BukitEunos Formed from Kaki Bukit & TampinesFengshan Formed from Bedok, Kampong Chai Chee & Tanah MerahHong Kah Formed from Boon LayTeck Ghee Formed from Ang Mo Kio & Chong BoonYuhua Formed from Boon Lay & Bukit TimahDefunct Constituencies Bukit Ho Swee Absorbed to Tiong Bahru and Kim SengHavelock Absorbed to Delta Katong Absorbed to Joo Chiat and Mountbatten

MPs not standing for re-election A total of 19 MPs retired at this election, among them notable stalwart, Goh Keng Swee. Additionally, Finance Minister Hon Sui Sen died in office on 14 October 1983, leaving the Havelock seat vacant until this election, as no by-election was held. MP Party ConstituencyElected inAbdul Rahim IshakPAPSiglap1963Chan Chee SengPAPJalan Besar1959Chau Sik TingPAPThomson1980Chiang Hai DingPAPUlu Pandan1970Chor Yeok EngPAPBukit Timah1966Joseph Francis ConceicaoPAPKatong1968Goh Keng SweePAPKreta Ayer1959Ho See BengPAPKhe Bong1963Howe Yoon ChongPAPPotong Pasir1979Hwang Soo JinPAPJalan Kayu1968M. K. A. JabbarPAPRadin Mas1980Lee Khoon ChoyPAPBraddell Heights1965Liew Kok PunPAPBoon Teck1980Rohan KamisPAPTelok Blangah1980Saidi ShariffPAPKaki Bukit1980Seah Mui KokPAPBukit Ho Swee1968P. SelvaduraiPAPKuo Chuan1967Sia Kah HuiPAPPaya Lebar1963Mansor SukaimiPAPKampong Kembangan1976 New candidates Notable candidates in this election included Lee Hsien Loong, a brigadier-general of the Singapore Army and the son of prime minister Lee Kuan Yew, as well as Richard Hu, the first MP to be directly appointed as a cabinet minister, and other future ministers such as Abdullah Tarmugi, Lee Boon Yang, Mah Bow Tan, Wong Kan Seng and Yeo Cheow Tong. The opposition also fielded prominent figures such as Jufrie Mahmood of the WP and Ling How Doong of the SDP. New candidate Party ConstituencyAbdullah TarmugiPAPSiglapArthur BengPAPFengshanChew Heng ChingPAPKaki BukitChng Chin SiahSUFFengshanChng Hee KokPAPRadin MasChon Koon CheongWPHendersonChong Tung ShangSUFEunosPeter ChuaWPDeltaGertrude De GraciasSUFMarine ParadeJohn GanWPPasir PanjangHeng Chiang MengPAPJalan KayuHo Tat KinPAPBoon TeckRichard HuPAPKreta AyerIbrahim OthmanPAPTanah MerahLee Boon YangPAPJalan BesarLee Chin TeckSUFBedokLee Hsien LoongPAPTeck GheeLeong Horn KeePAPThomsonLim Ah YongSDPYuhuaLing How DoongSDPChong BoonStanley MariadassIndependentSembawangMah Bow TanPAPPotong PasirMohamad Sani JanAISPasir PanjangMohamed Jufrie MahmoodWPKampong KembanganMohd Taib SaffarWPBrickworksNg Pock TooPAPAnsonQuek Teow ChuanSUFNee SoonSim Ah LengSUFPunggolReveendran SasiSUFBoon LayA. L. SundramWPKallangTan Ah TengIndependentMountbattenDixie TanPAPUlu PandanTan Jue KitUPFBukit BatokPhilip TanPAPPaya LebarTang Guan SengPAPKhe BongWang Kai YuenPAPBukit TimahAline WongPAPChangkatWong Kan SengPAPKuo ChuanYatiman YusofPAPKampong KembanganYeo Cheow TongPAPHong KahYu-Foo Yee ShoonPAPYuhuaZulkifli MohammedPAPEunos Results The highest-performing constituency in this election was Richard Hu's Kreta Ayer, the former seat of Goh Keng Swee who retired at this election, where Hu secured 83.17% of the vote against an independent candidate. This marked the first post-independence election in which the highest vote share was achieved outside of Tanjong Pagar, which had recorded the top result in four consecutive elections but was uncontested in this election.

Two candidates lost their deposits: Mohamad Sani bin Jan of Angkatan Islam Singapura (ANGKASA) in Pasir Panjang and Teo Kim Hoe of the United People's Front (UPF) in Chua Chu Kang. Teo received only 0.81% of the valid votes, the lowest score in any election at the time, a record that stood until Desmond Lim's 0.57% at the 2013 Punggol East by-election. Excluding the 30 uncontested constituencies, voter turnout was 95.65%, representing 63.2% of the total electorate.

This election also marked the return of female representation in Singaporean politics for the first time since the 1970 by-elections. Three women from the PAP, namely Yu-Foo Yee Shoon, Dixie Tan and Aline Wong, entered Parliament for the first time, making their debut in this contest.

The first NCMP offer went to M.P.D. Nair of the WP, who contested at Jalan Kayu and secured 48.78% of the vote, but following an internal party vote to turn down the position, he declined. The offer was then extended to Tan Chee Kien of the Singapore United Front (SUF), who contested at Kaki Bukit and secured 47.72% of the vote, and he also declined, after which no further offers were made.

By constituency