John Aldag
Member of Parliament forCloverdale—Langley City
In office September 20, 2021 – May 31, 2024
Preceded by	Tamara Jansen
Succeeded by	Tamara Jansen
In office October 19, 2015 – October 21, 2019
Preceded by	Riding established
Succeeded by	Tamara Jansen
Personal details
Born	(1963-04-18)April 18, 1963 (age 62) Gull Lake, Saskatchewan, Canada
Political party	Liberal
Other political affiliations	New Democratic (BC)
Spouse	Elaine St. John
Residence(s)	Langley, British Columbia, Canada
Profession	Public servant, politician

John W. Aldag^[1] (born April 18, 1963) is a Canadian politician who represented theriding ofCloverdale—Langley City in theHouse of Commons of Canada as aLiberal MP from 2015 to 2019 and 2021 to 2024.

He was first elected in the2015 federal election, and served until his defeat in the2019 Canadian federal election.^[2] In the2021 federal election he won his seat back over incumbent ConservativeTamara Jansen.^[3]

Aldag announced he would resign his seat effective May 27, 2024, to seek theBC New Democratic Party nomination inLangley-Abbotsford in the 2024 British Columbia election.^[4] He resigned his seat May 31, 2024 and was officially nominated as the NDP candidate in Langley-Abbotsford on July 20, 2024,^[5][6] but lost toBC Conservatives candidateHarman Bhangu in the2024 British Columbia general election.^[7] He would later replace Nasima Nastoh as the Liberal candidate inLangley Township—Fraser Heights before losing in that riding in the2025 Canadian federal election to Conservative incumbentTako van Popta.^[8]

Aldag was born in ruralSaskatchewan. He earned anMBA fromRoyal Roads University and had a 32-year career withParks Canada, including postings inWhitehorse,Lake Louise,Yoho,Waterloo andLangley, where he was the administrator ofFort Langley National Historic Site before his entry into politics.^[9] Aldag took an unpaid leave from Parks Canada in December 2013 to begin campaigning for election to office, which he ultimately won with nearly 46% of the vote.^[2] He resigned his position upon being confirmed as the elected candidate by Elections Canada on October 26, 2015.

Aldag and his wife, Elaine St. John, a doctor, have two daughters and one son, and had lived in Langley for a decade at the time of his election to the House of Commons.^[9][10]

Aldag was elected in the2015 election as a Member of Parliament forCloverdale—Langley City. In the42nd Canadian Parliament, he was appointed to two parliamentary committees; theEnvironment and Sustainable Development committee^[11] and the Special Joint Committee on Physician-Assisted Dying, an issue in which he consulted extensively with his constituents.^[12] The issue of Physician-Assisted Dying touched him, causing him to be a proponent of families having conversations about their wishes in these situations.^[12] He was later named as well to the House of CommonsSpecial Committee on Electoral Reform. Aldag introduced Private Member'sBill C-374 which, if adopted, would provide a seat on theHistoric Sites and Monuments Board of Canada for First Nations, Inuit and Métis representation.^[13] Thefederal by-election to replace him was scheduled for December 16, 2024 and was won by Jansen.^[14]

• 1963 births
• Living people
• British Columbia New Democratic Party candidates in British Columbia provincial elections
• Liberal Party of Canada MPs
• Members of the House of Commons of Canada from British Columbia
• People from Langley, British Columbia (city)
• 21st-century members of the House of Commons of Canada

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