Sharon Prost (born May 24, 1951) is a United States circuit judge of the United States Court of Appeals for the Federal Circuit.

Prior to her confirmation to the Federal Circuit, Prost had served as a lawyer at the Senate Judiciary Committee from 1993 to 2001, lastly as chief counsel.

Before working for the Senate, she served as an attorney at the Federal Labor Relations Authority from 1980 to 1983, the United States Department of the Treasury from 1983 to 1984 and the National Labor Relations Board from 1984 to 1989.

Before that she was an auditor and labor relations specialist for the Government Accountability Office from 1976 to 1980 and a labor relations specialist for the United States Civil Service Commission from 1973 to 1976.

Prost was nominated to the United States Court of Appeals for the Federal Circuit by President George W. Bush on May 21, 2001, to fill a seat vacated by Judge S. Jay Plager.