William Marks served as a Senator from Pennsylvania in the United States Congress from 1825 to 1831. A member of the Adams Party, William Marks contributed to the legislative process during 1 term in office.

William Marks’s service in Congress occurred during a significant period in American history. As a member of the Senate, William Marks participated in the democratic process and represented the interests of constituents.

William Marks (October 13, 1778 – April 10, 1858) was an American lawyer and politician from Beaver, Pennsylvania. He served in both houses in the state legislature and was the Speaker for the House from 1813 to 1819. He later represented Pennsylvania in the United States Senate.