Cristin McCarthy Vahey is an American politician serving as a member of the Connecticut House of Representatives from the 133rd district.

Vahey was born in West Chester, Pennsylvania.

[1] She earned a Bachelor of Arts degree in economics and government from the University of Notre Dame and a Master of Social Work from the University of Washington School of Social Work.

She was elected to the Connecticut House of Representatives in November 2014 and assumed office on January 7, 2015.

Since 2019, she has served as co-chair of the House Planning and Development Committee.