Raymond S. Thatcher was an American politician and pharmacist who served a total of six terms as Connecticut State Comptroller between 1946 and 1966. A Democrat from East Hampton, Thatcher also served in the Connecticut House of Representatives and as a public utilities commissioner during his 40-year-long political career.

The State Comptroller is the chief fiscal guardian of the State of Connecticut. The duties and responsibilities of the state comptroller include, among other things, overseeing state accounting, preparing state financial reports, paying and administering benefits to state employees, settling demands against the state that do not first have to be approved or adjusted by the General Assembly, administering miscellaneous appropriations for employee taxes, insurance, and health services, and administering grants to police, firefighters, and municipalities.