Costas Menegakis MP (born January 12, 1959) is a businessman, entrepreneur, and Canadian politician, who represented the federal electoral district of Richmond Hill from 2011 to 2015. He returned to Parliament in the 2025 Canadian federal election, winning in the district of Aurora—Oak Ridges—Richmond Hill.

In 2011, Costas Menegakis was elected to Canada's 41st Parliament as the Member of Parliament for Richmond Hill and in 2013, Menegakis was appointed Parliamentary Secretary to the Minister of Citizenship and Immigration by Prime Minister Stephen Harper. During his time in office, Menegakis was a member on the Canadian House of Commons Standing Committees for Citizenship and Immigration, Procedures and House Affairs, Government Operations and Estimates and Official Languages.

In the 2015 federal election, Menegakis contested in the new Aurora—Oak Ridges—Richmond Hill riding. Menegakis was defeated by Liberal candidate Leona Alleslev by just 1,093 votes.

In February 2018, Menegakis was again elected as the Conservative candidate for Aurora—Oak Ridges—Richmond Hill, but later stepped down as the party's nominee when Alleslev crossed the floor to join the Conservative Party. Two weeks later, Menegakis was acclaimed as the Conservative candidate in his former riding of Richmond Hill, however he lost the riding against the Liberal candidate Majid Jowhari 43.48% to 43.06%.

Menegakis was nominated as the Conservative Candidate in Richmond Hill and was defeated in a rematch of the 2019 federal election by the incumbent MP, Majid Jowhari, 47.7% to 38.8%.

In February 2024, Menegakis announced that he was seeking the Conservative Party nomination, Aurora—Oak Ridges—Richmond Hill for the upcoming federal election. Initially, he was expected to compete against former National Post columnist Sabrina Maddeaux, Aurora town councillor Rachel Gilliland, former Richmond Hill city councillor Carmine Perrelli, and small business owner Yun Liu. However, on May 9, Maddeaux announced that she was suspending her campaign due to concerns that the party was not taking her allegations of an anonymous email smear campaign against her seriously. The Conservative Party stated that Maddeaux was the only candidate who had access to the Conservative membership list at the time of the alleged smear campaign. Gilliland, whose nomination application was rejected by the party, raised concerns about the nomination process by stating that she had less support among the existing Conservative membership.

Menegakis later defeated Perrelli to become the Conservative nominee.