| Theresa B. Gerratana | |
| Birth Date: | 1949 |
| Birth Place: | New Britain |
| Residence: | New Britain |
| Office: | Connecticut Senator from the 6th District |
| Term Start: | 2011 |
| Term End: | 2019 |
| Successor: | incumbent |
| Party: | Democrat |
| Spouse: | Frank J. Gerratana |
| Children: | Frank L. Gerratana, Gregory J. Gerratana |
| Successor1: | Gennaro Bizzarro |
Theresa Bielinski Gerratana is an American politician who was formerly a member of the Connecticut State Senate, serving from 2011 to 2019. She was first elected in a special election on February 22, 2011, to represent the citizens of New Britain, Berlin and Farmington. In November 2014, Gerratana was reelected by her constituents to serve a third term. She served as co-chair of the Public Health Committee and vice-chair of the Government Administration and Elections Committee.
Gerratana first served in the Connecticut General Assembly as a member of the state House of Representatives for ten years, from 1993 to 2003. During her time in the House, Gerratana served as co-chair of the Human Services Committee.
Gerratana left her role in the Senate to join the Office of Health Strategy after being nominated by Governor Ned Lamont in 2019.