Michael James Gardiner (born October 19, 1965) is a Canadian former Major League Baseball pitcher who played for the Seattle Mariners, Boston Red Sox, Montreal Expos, and Detroit Tigers.^[1] He was a switch hitter and threw right-handed.

Gardiner was drafted by the Seattle Mariners in the 18th round (448th) of the 1987 Major League Baseball Draft out of Indiana State University.^[1] He signed June 6, 1987. He reached the Majors on September 8, 1990.^[2]

In his college career, Gardiner led Indiana State to the College World Series; he currently holds the career wins record (30) for the Sycamores, he's #2 in strikeouts (296) and #5 in complete games (16). He was a member of the Canadian Olympic Team for the 1984 Olympics and the 1985 Intercontinental Cup.

In a six-year major league career, Gardiner posted 17 wins, 27 losses, and a career 5.21 ERA in 136 career games.^[2] He spent a total of 12 seasons in the minors, posting a W/L record of 61–42, 3.97, 11 Saves and an ERA of 3.45. He was the Eastern League Pitcher of the Year in 1990.^[3]

Gardiner lives in Charlotte, North Carolina, and is the owner/manager of the Charlotte Stealth Baseball Organization (Travel baseball for players 9U up to 17U).

His son, Eric, passed away in February 2024 at the age of 28, following a battle with cancer.^[4]