Chuck Kniffin

Charles Edward Kniffin (born October 28, 1950) is an American former professional baseball player and coach. Much of Kniffin's three-decade professional career was spent in minor league baseball, but he served 2½ seasons as the Major League pitching coach of the –04 Arizona Diamondbacks on the staff of then-manager Bob Brenly.

Kniffin was born in Rockville Centre, New York. A , left-handed pitcher during his playing days, he was selected by the Philadelphia Phillies in the 25th round of the 1969 Major League Baseball draft out of Nassau Community College. He pitched for ten seasons in the Phillie farm system, compiling a 55–40 record in 244 appearances.

After leaving affiliated ball, he settled in Colorado with his wife and got a job as a driver for UPS. In 1984, at the suggestion of a friend, he left his job with UPS to play a season of baseball in Italy. When he returned to the United States, he took a job as a pitching coach in the Seattle Mariners organization. Kniffin then served as pitching coach of the Triple-A Colorado Springs Sky Sox from 2006–09 until his retirement at the close of the 2009 minor league season.