Sam Blakeley Hall Jr. (January 11, 1924 - April 10, 1994), American politician, was a Congressman representing Texas District 1 from 1976 to 1985 and then a federal judge of the Eastern District of Texas from 1985 until his death in 1994.

Hall was born and raised in Marshall, Texas, where he attended the College of Marshall where he met his future wife Mary Madeline Segal. After graduating from the College of Marshall with an Associate Arts degree, he attended the University of Texas before enlisting in the United States Air Force to serve during World War II. On returning to Marshall after WWII he married Madeline Segal and graduated with a bachelor degree from Baylor University in 1946 and law degree in 1948. After being admitted to the bar he returned to Marshall to practice law.

Hall was unsuccessful in an attempt to receive the Democratic Party nomination for the Texas District 1 House of Representatives seat in 1962, but won a special election for the seat after the death of incumbent Wright Patman. He was reelected five times and served on the Judiciary Committee and Veterans' Affairs Committees. In 1985, President Reagan nominated him as a federal judge for the Eastern District of Texas. He was quickly confirmed and subsequently resigned from Congress to be sworn in as judge. He continued to serve until his death in 1994.

The Federal Courthouse in Marshall, Texas has been renamed in his honor.