Mark Eugene Wiley (born February 28, 1948) is an American former Director of Pitching Operations for the Colorado Rockies.

He signed a minor league deal with the San Diego Padres shortly afterwards, and had a PCL leading sixteen victories for the Hawaii Islanders in 1977.

[4] He earned a call up to the majors in June 1978, and was effective in his first three appearances (1-0, 1.29 ERA, while holding batters to a .185 batting average), until a July 7 outing against the Atlanta Braves.

He caught on with the Baltimore Orioles, and spent the 1980 season with the Rochester Red Wings before retiring, and going into coaching.

After a disastrous 1991 season, in which the Indians lost 105 games, Wiley was replaced as pitching coach by Rick Adair, however, he accepted another position within the organization.

After just one season in Kansas City, Wiley resigned, and accepted a front office position with the Colorado Rockies.

[15] He accepted the position of special assistant to Marlins General Manager Mike Hill until returning to the Rockies in 2012.