John Aldag

John Aldag
Aldag in 2016
Member of Parliament
for Cloverdale—Langley City
In office
September 20, 2021  May 31, 2024
Preceded byTamara Jansen
Succeeded byTamara Jansen
In office
October 19, 2015  October 21, 2019
Preceded byRiding established
Succeeded byTamara Jansen
Personal details
Born (1963-04-18) April 18, 1963
Gull Lake, Saskatchewan, Canada
Political partyLiberal
Other political
affiliations
New Democratic (BC)
SpouseElaine St. John
Residence(s)Langley, British Columbia, Canada
ProfessionPublic servant, politician

John W. Aldag (born April 18, 1963) is a Canadian politician who represented the riding of Cloverdale—Langley City in the House of Commons of Canada as a Liberal MP from 2015 to 2019 and 2021 to 2024.

He was first elected in the 2015 federal election, and served until his defeat in the 2019 Canadian federal election. In the 2021 federal election he won his seat back over incumbent Conservative Tamara Jansen.

Aldag announced he would resign his seat effective May 27, 2024, to seek the BC New Democratic Party nomination in Langley-Abbotsford in the 2024 British Columbia election. He resigned his seat May 31, 2024 and was officially nominated as the NDP candidate in Langley-Abbotsford on July 20, 2024, but lost to BC Conservatives candidate Harman Bhangu in the 2024 British Columbia general election. He would later replace Nasima Nastoh as the Liberal candidate in Langley Township—Fraser Heights before losing in that riding in the 2025 Canadian federal election to Conservative incumbent Tako van Popta.