The United States Senate Democratic Conference Secretary, also called the Caucus Secretary, is a ranking leadership position within the Democratic Party in the United States Senate. It was previously considered the number-three position, behind the party's floor leader and the party's whip, until in 2006, when Democratic leader Harry Reid created the new position of Vice-Chairman of the caucus. Now, the secretary is the fourth-highest ranking position. The conference secretary is responsible for taking notes and aiding the party leadership when senators of the party meet or caucus together.
The first conference secretary was Sen. Edward W. Carmack of Tennessee, who was elected in March 1903.
The current conference secretary is Sen. Tammy Baldwin of Wisconsin, who assumed the office in January, 2017.