Department of (the) Treasury or similar may refer to:
Department of the Treasury (Australia)
Department of Treasury and Finance (South Australia)
Department of Treasury and Finance (Victoria)
Department of Treasury (Western Australia)
Department of the Treasury (Isle of Man)
Puerto Rico Department of Treasury
United States Department of the Treasury
Bodies called Department of the Treasury often exist for English-speaking countries' subnational divisions, such as:
Provinces of Canada
States of Australia
States of the United States