William Joseph Peter Francis "Billy" Devaney (born March 7, 1955) is a professional American football executive. He was the general manager for the St. Louis Rams of the National Football League from 2008 to 2011. He formerly was an assistant to the general manager with the Atlanta Falcons. He replaced the longtime Rams president of football operations, Jay Zygmunt, at the end of the 2008 season. Devaney was raised in the Leonardo section of Middletown Township, New Jersey, and attended Mater Dei High School. He went on to attend Elon University.