Michael John Kinnunen
- Bats Left, Throws Left
- Height 6' 1", Weight 185 lb.
- School Washington State University
- High School Lincoln High School (Seattle)
- Debut June 12, 1980
- Final Game October 3, 1987
- Born April 1, 1958 in Seattle, WA USA
Mike Kinnunen, a pitcher for the Minnesota Twins and Baltimore Orioles in the 1980s, holds the major league record for most pitching appearances without a decision of any kind (win, loss or save). He appeared in 48 games in his career, spanning 51 2/3 innings. His 51 2/3 IP places him 3rd on the all-time list of innings pitched without a decision, behind Don Rowe (54 2/3) and Tom Qualters (52 2/3).
Mike is married and lives in Carolina, Puerto Rico. He works as the person in charge for the playing field of the Roberto Clemente Amateur Stadium of Carolina.
Kinnunen was a star for Team USA in the 1978 Amateur World Series, when the US won a Silver Medal. Mike went 3-0 and had a 0.45 ERA, allowing 3 runs (1 earned) in 20 IP. He fanned 17 and allowed only 9 hits, though he walked 9. He tied Braudilio Vinent and Mark Thurmond for third in the Series in wins, trailing Shigekazu Mori and Dong-won Choi. He led the Series with two shutouts.