Geylang Serai Constituency was a single member constituency within Geylang Serai, Singapore that existed in pre-independence era of 1959 elections by carving a portion from its predecessor constituency, Ulu Bedok Constituency It had remained itself all the way until prior to 1988 elections where it is merged into Marine Parade Group Representation Constituency.
| Year | Member of Parliament | Party | |
| Legislative Assembly of Singapore | |||
|---|---|---|---|
| 1959 | Abdul Hamid bin Haji Jumat | PKMS | |
| 1963 | Rahmat bin Kenap | PAP | |
| Parliament of Singapore | |||
| 1968 | Rahmat bin Kenap | PAP | |
| 1972 | |||
| 1976 | |||
| 1980 | Othman bin Haron Eusofe | ||
| 1984 | |||
Note : Elections Department Singapore do not include rejected votes for calculation of candidate's vote share. Hence, the total of all candidates' vote share will be 100%.
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| PKMS | Abdul Hamid bin Haji Jumat | 7,940 | 63.09 | |
| PAP | Roshan bin Hassan | 3,832 | 30.45 | |
| PMIP | Syed Ahmad Dahlan | 460 | 3.66 | |
| Partai Rakyat Singapore | Harun bin Mohamed Amin | 353 | 2.80 | |
| Registered electors | 14,447 | |||
| Total valid votes | 12,585 | 99.14 | ||
| Rejected ballots | 109 | 0.86 | ||
| Turnout | 12,694 | 87.87 | ||
| PKMS win (new seat) | ||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| PAP | Rahmat bin Kenap | 6,722 | 48.01 |  17.56
| |
| SA | Ahmad bin Haji Taff | 5,019 | 35.85 |  27.24
| |
| PMIP | Mohamed Taha bin Suhaimi | 1,201 | 8.58 | 4.92
| |
| Independent | Darus Shariff | 1,059 | 7.56 | N/A | |
| Majority | 1,703 | 12.16 | N/A | ||
| Registered electors | 15,302 | 5.92
| |||
| Total valid votes | 14,001 | 97.07 | 2.07
| ||
| Rejected ballots | 423 | 2.93 | 2.07
| ||
| Turnout | 14,424 | 94.26 | 63.9
| ||
| PAP gain from PKMS | |||||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| PAP | Rahmat bin Kenap | 9,363 | 83.01 | 35.00
| |
| Independent | Darus Shariff | 1,916 | 16.99 | 9.43
| |
| Majority | 7,447 | 66.02 | 53.86
| ||
| Registered electors | 12,741 | 16.74
| |||
| Total valid votes | 11,279 | 97.28 | 0.21
| ||
| Rejected ballots | 315 | 2.72 | 0.21
| ||
| Turnout | 11,587 | 90.9 | 3.4
| ||
| PAP hold | Swing | 35.00
|
|||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| PAP | Rahmat bin Kenap | 6,711 | 53.59 | -29.42 | |
| PKMS | Ahmad Haji Taff | 4,978 | 39.75 | +39.75 | |
| United National Front | Raja Rom bin Raja Jaafar | 833 | 6.66 | +6.66 | |
| Turnout | 12,801 | 92.5 | +1.6 | ||
| PAP hold | Swing | -29.42 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| PAP | Rahmat bin Kenap | 8,780 | 66.34 | +12.75 | |
| PKMS | Amnah bte Kuong Hussein | 3,129 | 23.64 | -16.11 | |
| United People's Front | Darus bin Shariff | 1,326 | 10.02 | +10.02 | |
| Turnout | 13,543 | 95.5 | +3.0 | ||
| PAP hold | Swing | +12.75 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| PAP | Othman bin Haron Eusofe | 13,195 | 71.99 | +5.65 | |
| DPP | Seow Khee Leng | 5,134 | 28.01 | +28.01 | |
| Turnout | 18,832 | 94.3 | -1.2 | ||
| PAP hold | Swing | +5.65 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| PAP | Othman bin Haron Eusofe | 14,564 | 65.57 | -6.42 | |
| DPP | Mohamed Monsor Rahman | 7,649 | 34.43 | +6.42 | |
| Turnout | 22,956 | 95.2 | +0.9 | ||
| PAP hold | Swing | -6.42 | |||
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