Nancy Elaine Achin Sullivan (January 20, 1959 – February 25, 2022) was an American Republican politician from Lowell, Massachusetts.

She represented the 1st Middlesex district in the Massachusetts Senate from 1991 to 1993 and was a Democrat.

[1] She retired after a single term because she was undergoing chemotherapy to treat breast cancer.

[3] A four-time cancer survivor, she served as executive director of the Massachusetts Board of Registration in Medicine from 1999 until 2008.

[4] Sullivan went to the Academy of Notre Dame in Lowell, Massachusetts and to Radcliffe College.