Catherine Allison Russo (born October 15, 1976) is an American healthcare consultant and Democratic politician currently serving as the Minority Leader of the Ohio House of Representatives.

[1] Russo represents the 7th district, which consists of portions of Columbus, and Upper Arlington in Franklin County.

Russo was the Democratic Party nominee for the 2021 Ohio's 15th congressional district special election.

[2] In 2020, she successfully defended her seat against Republican Pat Manley, increasing her win by 1 percentage point with 58% of the vote.

[4] Although she lost the race, she won a greater vote share than any Democrat in that district since it was drawn in 2012.