William Wallace Lumpkin Glenn (August 12, 1914 – March 10, 2003) was an American cardiac surgeon who co-created an early version of an artificial heart and was the developer of a technique for the treatment of congenital heart defects. Glenn died at age 88 on March 10, 2003 in Peterborough, New Hampshire at . He was survived by his wife Amory, as well as a son, a daughter and five grandchildren.