Douglas J. La Follette is an American academic, environmental scientist, and politician who served as the 30th secretary of state of Wisconsin from 1983 to 2023. He is a member of the Democratic Party. At the time of his retirement, La Follette was the longest-serving statewide elected official in the United States; he was narrowly re-elected in 2022 to an unprecedented 12th term in office, but retired shortly after the start of the new term. He previously served as the 28th secretary of state from 1975 to 1979, and in the Wisconsin Senate from 1973 to 1975.

The La Follette family is a prominent family in the United States, especially in Wisconsin. Many of the family members have pursued political office.