Francis Preston Blair Lee III was an American Democratic politician. He served as the secretary of State of Maryland from 1969 to 1971. He was the second lieutenant governor of Maryland from 1971 to 1979 and as such, was the acting governor of Maryland from 1977 to 1979, during Marvin Mandel's self-imposed suspension of gubernatorial powers and duties.

The secretary of state of Maryland is charged with the administrative and record-keeping functions of the state government of the U.S. state of Maryland. The secretary of state also holds custody of the Seal of Maryland. Unlike in many states, the secretary of state is not an elective office, but is appointed by the governor and confirmed by the state senate. Susan C. Lee has served as the secretary of state since January 2023.