List of parliamentary by-elections in Malaysia

Casual vacancies in the Dewan Rakyat (House of Representatives) are filled through by-elections, which may occur when a member of the Dewan Rakyat dies, resigns or for some other reason. Under Article 54(1) of the Constitution of Malaysia, the Election Commission of Malaysia has to call a by-election within 60 days of the establishment of the casual vacancy. A by-election is not held when there are less than two years left in the Parliament's term, unless the Speaker notifies the Election Commission that the casual vacancy affects the majority of the governing party.

Brackets around a date indicate that the candidate was unopposed when nominations closed. These candidates were declared "elected unopposed" with effect from the date of the closing of nominations, and there was no need to hold a by-election.

15th Parliament (2022–present)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Kemaman	2 December 2023	Che Alias Hamid		PN (PAS)	Ahmad Samsuri Mokhtar		PN (PAS)	Nullified and disqualified for element of bribery (election petition)
Pulai	9 September 2023	Salahuddin Ayub		PH (AMANAH)	Suhaizan Kayat		PH (AMANAH)	Death (brain hemorrhage)
Kuala Terengganu	12 August 2023	Ahmad Amzad Hashim		PN (PAS)	Ahmad Amzad Hashim		PN (PAS)	Nullified and disqualified for element of bribery (election petition)
Padang Serai	7 December 2022	Karupaiya Mutusami		PH (PKR)	Azman Nasrudin		PN (BERSATU)	The election was postponed from the original date because of the death of the incumbent after the nomination day.

14th Parliament (2018–2022)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Pekan	Not held	Najib Razak		BN (UMNO)	—			Disqualification (sentenced to jail (1MDB scandal))
Gerik	Cancelled	Hasbullah Osman		BN (UMNO)	—			Death (heart attack)
Batu Sapi	Cancelled	Liew Vui Keong		WARISAN	—			Death (pneumonia)
Kimanis	18 January 2020	Anifah Aman		Independent	Mohamad Alamin		BN (UMNO)	Nullified and disqualified for election process discrepancies (election petition)
Tanjung Piai	16 November 2019	Md Farid Md Rafik		PH (BERSATU)	Wee Jeck Seng		BN (MCA)	Death (heart attack)
Sandakan	11 May 2019	Stephen Wong Tien Fatt		PH (DAP)	Vivian Wong Shir Yee		PH (DAP)	Death (cardiac arrest)
Cameron Highlands	26 January 2019	Sivarraajh Chandran		BN (MIC)	Ramli Mohd. Noor		BN (Direct Member)	Nullified and disqualified for element of bribery (election petition)
Port Dickson	13 October 2018	Danyal Balagopal Abdullah		PH (PKR)	Anwar Ibrahim		PH (PKR)	Resignation ('PD Move')

13th Parliament (2013–2018)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Paya Besar	Not held	Abdul Manan Ismail		BN (UMNO)	—			Death (suspected heart attack & accident in a bathroom)
Jelebu	Not held	Zainuddin Ismail		BN (UMNO)	—			Death (brain tumor)
Sungai Besar	18 June 2016	Noriah Kasnon		BN (UMNO)	Budiman Mohd Zohdi		BN (UMNO)	Death (helicopter crash) in Sarawak.
Kuala Kangsar	18 June 2016	Wan Mohammad Khair-il Anuar Wan Ahmad		BN (UMNO)	Mastura Mohd Yazid		BN (UMNO)	Death (helicopter crash) in Sarawak.
Permatang Pauh	7 May 2015	Anwar Ibrahim		PKR	Wan Azizah Wan Ismail		PKR	Disqualification (found guilty of sodomy)
Rompin	5 May 2015	Jamaluddin Mohd Jarjis		BN (UMNO)	Hasan Arifin		BN (UMNO)	Death (helicopter crash) in Semenyih, Selangor.
Telok Intan	31 May 2014	Seah Leong Peng		DAP	Mah Siew Keong		BN (Gerakan)	Death (bladder cancer)
Bukit Gelugor	25 May 2014	Karpal Singh		DAP	Ramkarpal Singh		DAP	Death (car accident)

12th Parliament (2008–13)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Sabak Bernam	Not held	Abdul Rahman Bakri		BN (UMNO)	—			Disqualification (sentenced to jail)
Titiwangsa	Not held	Lo' Lo' Mohamad Ghazali		PAS	—			Death (cancer)
Batu Sapi	4 November 2010	Edmund Chong Ket Wah		BN (PBS)	Linda Tsen Thau Lin		BN (PBS)	Death (motorcycle accident)
Sibu	16 May 2010	Robert Lau Hoi Chew		BN (SUPP)	Wong Ho Leng		DAP	Death (liver cancer)
Hulu Selangor	25 April 2010	Zainal Abidin Ahmad		PKR	Kamalanathan Panchanathan		BN (MIC)	Death (brain cancer)
Bukit Gantang	7 April 2009	Roslan Shaharum		PAS	Mohammad Nizar Jamaluddin		PAS	Death (heart attack)
Kuala Terengganu	17 January 2009	Razali Ismail		BN (UMNO)	Mohd Abdul Wahid Endut		PAS	Death (heart attack)
Permatang Pauh	26 August 2008	Wan Azizah Wan Ismail		PKR	Anwar Ibrahim		PKR	Resignation to create vacancy

11th Parliament (2004–08)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Labis	Not held	Chua Soi Lek		BN (MCA)	—			Resignation However, SPR did not hold a by-election.
Pasir Puteh	Not held	Kalthom Othman		PAS	Che Min Che Ahmad		BN (UMNO)	Election declared null and void. However, SPR did not hold a by-election.

10th Parliament (1999–2004)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Kangar	Not held	Abdul Hamid Pawanteh		BN (UMNO)	—			Resignation on appointment as President of Dewan Negara
Gaya	12 October 2002	Yong Teck Lee		BN (SAPP)	Liew Teck Chan		BN (SAPP)	Disqualification (found guilty of election offences)
Pendang	18 July 2002	Fadzil Noor		PAS	Othman Abdul		BN (UMNO)	Death (heart attack)
Telok Kemang	10 June 2000	S. A. Anpalagan		BN (MIC)	Sothinathan Sinna Goundar		BN (MIC)	Death (heart attack)

9th Parliament (1995–99)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Permatang Pauh	Not held	Anwar Ibrahim		Independent	—			Disqualification (found guilty of sodomy and corruption)
Kota Melaka	Not held	Lim Guan Eng		DAP	—			Disqualification (jailed under Sedition Act)
Arau	4 July 1998	Kamarudin Ahmad		BN (UMNO)	Hashim Jasin		PAS	Death (stroke)
Kuala Selangor	29 May 1997	Abu Hassan Omar		BN (UMNO)	Jamaluddin Adnan		BN (UMNO)	Resignation (to contest in a Permatang by-election)
Telok Intan	17 May 1997	Ong Tin Kim		BN (Gerakan)	Kulasegaran Murugeson		DAP	Death (cancer)
Lipis	(15 January 1996)	Abu Dahari Osman		BN (UMNO)	Amihamzah Ahmad		BN (UMNO)	Death (colon cancer)
Bagan	9 September 1995	Patto Perumal		DAP	Lim Hock Seng		DAP	Death (heart attack)
Gua Musang	29 August 1995	Tengku Razaleigh Hamzah		S46	Tengku Razaleigh Hamzah		S46	Election declared null and void
Bukit Bintang	Not held	Wee Choo Keong		DAP	Lee Chong Meng		BN (MCA)	Election declared null and void. However, SPR did not hold a by-election.

8th Parliament (1990–95)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Semporna	Not held	Sakaran Dandai		BN (UMNO)	—			Resignation (on appointment as Yang di-Pertua Negeri of Sabah)
Kuala Nerus	Not held	Abdul Rashid Muhammad		BN (UMNO)	—			Death (abdominal pain)[1]
Jerai	4 March 1992	Ghazali Ahmad		BN (UMNO)	Badruddin Amiruldin		BN (UMNO)	Death (cancer)

7th Parliament (1986–90)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Bentong	13 May 1989	Chan Siang Sun		BN (MCA)	Lim Ah Lek		BN (MCA)	Death (heart attack)
Ampang Jaya	28 January 1989	Lim Ann Koon		BN (MCA)	Ong Tee Keat		BN (MCA)	Resignation
Johor Bahru	25 August 1988	Shahrir Abdul Samad		BN (UMNO)	Shahrir Abdul Samad		Independent	Resigned to recontest
Gopeng	16 May 1987	Tan Koon Swan		BN (MCA)	Ting Chew Peh		BN (MCA)	Resignation (Pan-Electric Industries scandal and deposit-taking co-operative scandal; imprisoned in Singapore)
Limbawang	18 April 1987	Abdul Hamid Mustapha		BN (USNO)	Mustapha Harun		BN (USNO)	Death (heart attack)
Lubok Antu	4 April 1987	Andrew Janggi Muyang		BN (PBDS)	Jawah Gerang		BN (PBDS)	Death (car accident)

6th Parliament (1982–86)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Ulu Padas	11–12 October 1985	Harris Salleh		BN (BERJAYA)	Kadoh Agundong		PBS	Resignation
Padang Terap	19 January 1985	Syed Ahmad Syed Mahmud Shahabuddin		BN (UMNO)	Baharom Abu Bakar		BN (UMNO)	Resignation on appointment as Yang di-Pertua Negeri of Malacca
Seremban	19 November 1983	Lee San Choon		BN (MCA)	Chen Man Hin		DAP	Resignation
Tampin	24 September 1983	Mokhtar Hashim		BN (UMNO)	Omar Abdullah		BN (UMNO)	Resignation (convicted of murder)
Ulu Muda	16 March 1983	Hashim Endut		BN (UMNO)	Othman Abdul		BN (UMNO)	Resignation (found guilty of offence involving the wholesale of rice)

5th Parliament (1978–82)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Sri Gading	26 September 1981	Hussein Onn		BN (UMNO)	Mustaffa Mohammad		BN (UMNO)	Resignation
Paloh	(4 May 1981)	Abdul Rahman Ya'kub		BN (PBB)	Abang Abu Bakar Abang Mustapha		BN (PBB)	Resignation (to accept the position of Yang di-Pertua Negeri of Sarawak)
Kimanis	(9 April 1981)	Pengiran Aliuddin Pengiran Tahir		BN (BERJAYA)	Pengiran Othman Pengiran Rauf		BN (BERJAYA)	Resignation (to contest in 1981 Sabah state election)
Mukah	(28 January 1980)	Salleh Jafaruddin		BN (PBB)	Edwin Esnen Unang		BN (PBB)	Resignation (to contest in Oya by-election)
Pelabuhan Kelang	1 December 1979	V. Manickavasagam		BN (MIC)	V. Govindaraj		BN (MIC)	Death (heart attack)

4th Parliament (1974–78)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Pontian	28 January 1978	Ali Ahmad		BN (UMNO)	Ikhwan Nasir		BN (UMNO)	Death (MH653 crash)
Keningau	26–30 July 1977	Stephen Robert Evans		BN (USNO)	Harris Salleh		BN (BERJAYA)	Resignation
Panti	(24 February 1977)	Syed Jaafar Albar		BN (UMNO)	Saadun Muhammad Noh		BN (UMNO)	Death (stroke)
Kimanis	29 January 1977	Pengiran Tahir Pengiran Petra		BN (USNO)	Pengiran Aliuddin Pengiran Tahir		Independent	Death
Kemaman	8 May 1976	Wan Abdul Kadir Ismail		BN (UMNO)	Abdul Manan Othman		BN (UMNO)	Death
Pekan	(21 February 1976)	Abdul Razak Hussein		BN (UMNO)	Mohd Najib Abdul Razak		BN (UMNO)	Death (leukaemia)
Selayang	14 June 1975	Walter Loh Poh Khan		BN (MCA)	Rosemary Chow Poh Kheng		BN (MCA)	Death

3rd Parliament (1971–74)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Rajang	7–12 January 1974	Tibuoh Rantai		SUPP	Jawan Empaling		SUPP	Death
Johore Timor	(8 September 1973)	Ismail Abdul Rahman		Alliance (UMNO)	Abdul Rahman Sabri		Alliance (UMNO)	Death (heart attack)
Kuala Kedah	20 January 1973	Tunku Abdul Rahman		Alliance (UMNO)	Senu Abd Rahman		Alliance (UMNO)	Resignation
Rembau-Tampin	8 July 1972	Sulaiman Mohamed Attas		Alliance (UMNO)	Mokhtar Hashim		Alliance (UMNO)	Death
Ulu Selangor	3 June 1972	Khaw Kai Boh		Alliance (MCA)	Michael Chen Wing Sum		Alliance (MCA)	Death (heart attack)
Lipis	8 April 1972	Abdul Razak Hussin		Alliance (UMNO)	Ghazali Shafie		Alliance (UMNO)	Resignation
Bau-Lundu	11–14 October 1971	Sinyium Mutit		SUPP	Joseph Valentine Cotter		SUPP	Resignation
Kapar	3 April 1971	Hamzah Alang		Alliance (UMNO)	Mohd. Tahir Abdul Manan		Alliance (UMNO)	Death
Malacca Selatan	30 January 1971	Abdul Karim Abu		Alliance (UMNO)	Ahmad Ithnin		Alliance (UMNO)	Election for Malacca Selatan federal constituency and another 40 federal constituencies in Sabah and Sarawak were postponed from the scheduled date, 10 May 1969.

2nd Parliament (1964–69)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Kuantan	(11 November 1968)	Abdul Rahman Talib		Alliance (UMNO)	Mohamed Taib		Alliance (UMNO)	Death (heart attack)
Segamat Utara	19 October 1968	Abdullah Mohd Salleh		Alliance (UMNO)	Musa Hitam		Alliance (UMNO)	Death
Kelantan Hilir	21 October 1967	Ahmad Abdullah		PAS	Nik Abdul Aziz Nik Mat		PAS	Death (car accident)
Pasir Mas Hulu	19 August 1967	Abdul Samad Gul Ahmad Mianji		PAS	Tengku Zaid Tengku Ahmad		PAS	Death (murder)
Raub	(14 August 1967)	Hussein Hassan		Alliance (UMNO)	Hamzah Abu Samah		Alliance (UMNO)	Death
Bruas	4 June 1966	Yeoh Tat Beng		Alliance (MCA)	Chew Biow Chuon		Alliance (MCA)	Death (car accident)
Krian Laut	12 March 1966	Abdul Rauf Abdul Rahman		Alliance (UMNO)	Sulaiman Taib		Alliance (UMNO)	Death (long illness)
Seberang Selatan	31 October 1964	Mohamed Noordin Mastan		Alliance (UMNO)	Snawi Ismail		Alliance (UMNO)	Death
Bachok	27 June 1964	Zulkiflee Muhammad		PAS	Abu Bakar Hamzah		PAS	Death (car accident)

1st Parliament (1959–64)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Muar Selatan	28 December 1963	Sulaiman Abdul Rahman		Alliance (UMNO)	Awang Hassan		Alliance (UMNO)	Death (heart attack)

Establishment of Malaysia
Successor to Federation of Malaya, North Borneo, Sarawak, Singapore

Lipis	20 October 1962	Mohamed Sulong Mohd. Ali		Alliance (UMNO)	Abdul Razak Hussin		Alliance (UMNO)	Death
Kuala Trengganu Selatan	19 March 1962	Onn Jaafar		Parti Negara	Ismail Kassim		Alliance (UMNO)	Death (heart attack)
Telok Anson	30 May 1961	Woo Saik Hong		Alliance (MCA)	Too Joon Hing		Independent	Death
Kampar	18 May 1960	Leong Kee Nyean		Alliance (MCA)	Chan Yoon Onn		PPP	Disqualification (found guilty of election offences)
Kedah Tengah	30 September 1959	Khir Johari		Alliance (UMNO)	Khir Johari		Alliance (UMNO)	The only remaining constituency where elections have not been completed in the Malayan general election, 1959.

Federal Legislative Council (1955–59)

By-election	Date	Incumbent	Party		Winner	Party		Cause
Batu Pahat	14 December 1957	S. Chelvasingam MacIntyre		Alliance (MIC)	Syed Esa Alwee		Alliance (UMNO)	Resignation on appointment as Malayan High Commissioner to India
Ipoh-Menglembu	23 November 1957	Leong Yew Koh		Alliance (MCA)	D. R. Seenivasagam		PPP	Resignation on appointment as Yang di-Pertua Negeri of Malacca
Sungei Perak Ulu	26 October 1957	Mohamed Ghazali Jawi		Alliance (UMNO)	Meor Samsudin Meor Yahya		Alliance (UMNO)	Resignation on appointment as Menteri Besar of Perak