William Yale Giles (born September 7, 1934) is an American baseball executive who currently serves as the honorary National League (NL) President.

[5] Sporting News' 1962 Official Baseball Guide and Record Book, published in the Colt .45s' maiden season, lists Giles as the club's traveling secretary and publicity director.

[1] Giles is also honorary president of the National League—the same job his father held on an official full-time basis.

One of the honorary president's tasks is to present the Warren C. Giles Trophy, named after his father, to the National League Championship Series winner.

[17] In 2001, a new tournament for the Division II baseball teams in the Philadelphia area, the Bill Giles Invitational, was named in his honor.