Harold Albert Baker (born October 4, 1929) is a former United States district judge of the United States District Court for the Central District of Illinois, with chambers in Urbana, Illinois. He was originally appointed to the United States District Court for the Eastern District of Illinois in 1978 by Jimmy Carter and then reassigned to the newly-created Central District in 1979. He became a senior judge in 1994. He was also a judge of the United States Foreign Intelligence Surveillance Court until 2005.