Bob Benzen (born March 3, 1959) is a Canadian politician who served as the member of Parliament (MP) for Calgary Heritage from 2017 to 2022. He was elected to the House of Commons of Canada in a by-election on April 3, 2017.^[2] He succeeded former Conservative Prime Minister Stephen Harper, who had resigned as an MP in 2016.

Prior to his election, Benzen was a businessman specializing in data storage and information management for energy companies.^[3]

Benzen was responsible for initiating Erin O'Toole's removal as Conservative leader in 2022, after he submitted a letter from 36 Conservative MPs calling for a leadership review.^[4]

Benzen voted in support of Bill C-233, an act to amend the Criminal Code of Canada (sex-selective abortion), which would make it an indictable or summary offence for a medical practitioner to knowingly perform an abortion solely on the grounds of the child's genetic sex.^{[5][non-primary source needed]}

Benzen voted against a bill that would prohibit forcing children or adults to undergo conversion therapy aimed at altering their sexual orientation; however, the bill was ultimately passed and conversion therapy in Canada was banned.^[6][7]

On October 21, 2022, Benzen announced that he would retire from his role as MP on December 31, 2022.^[8] The by-election to replace him was held on July 24, 2023.^[9] He was succeeded by Shuvaloy Majumdar.^[10]