Mark Eugene Wiley
- Bats Right, Throws Right
- Height 6' 1", Weight 200 lb.
- School California State Polytechnic University-Pomona
- High School Helix High School
- Debut June 17, 1975
- Final Game September 29, 1978
- Born February 28, 1948 in National City, CA USA
Mark Wiley was pitching coach of the Baltimore Orioles in 1987 and the Cleveland Indians from 1988 to 1991 and again from 1995 to 1998. He moved on to the Kansas City Royals staff in 1999 before returning to the Orioles as pitching coach from 2001 to 2004. He was also a Florida Marlins coach in 2005.
In 2006 and 2007, Wiley worked in the Colorado Rockies front office as a Special Assistant for Baseball Operations. In 2008 and 2009 Wiley served as Pitching Coach for the Florida Marlins. In 2011 and 2012, he was Special Assistant to the General Manager/Pro Scout for the Marlins. In 2013, he returned to the Rockies as the club's Director of pitching operations, responsible for overseeing the organization's pitching efforts, from Draft preparation to the Minor League clubs and the Major League club.