George Yapple McKinnon (November 24, 1918 – December 15, 2009) was an American minor league baseball player, coach of college athletics, and a Navy communications officer during World War II.

McKinnon played college baseball at Northwestern University as a shortstop where he was named All-Big Ten and helped his team win a conference championship.

[2] McKinnon served as a communications officer in the United States Navy aboard the ill-fated USS Lexington.

[3] After the war, McKinnon earned his master's degree from Western Reserve University in 1947 and joined the coaching staff at Cleveland Heights High School the following year.

During his 20 years as head baseball coach, McKinnon led the Wildcats to five 20-win seasons including a career-best 28–12 record in 1973.