Department of State commonly refers to the United States Department of State. Other uses include:

United States New Hampshire Department of State New York State Department of State Pennsylvania Department of State Puerto Rico Department of State

Elsewhere Department of State (Ireland) Department of State Affairs, a translation of Shangshu Sheng, an executive institution of imperial China (ca. 206 BC – 1368 AD)

See also

Secretary of state (U.S. state government)