John Mozeliak

John Mozeliak (born January 18, 1969) is an American professional baseball executive who served as general manager and president of baseball operations of the St. Louis Cardinals of Major League Baseball (MLB) from 2007 to 2025. Never a professional player, Mozeliak originally came to the Cardinals in 1995 as then-GM Walt Jocketty's assistant.

Mozeliak's tenure included 10 postseason berths, two National League pennants, and a World Series championship in 2011. He posted a franchise-record 15 consecutive winning seasons from 2008 to 2022, and his 1,521 wins are the most in the NL during that span. During his time, the Cardinals' minor league farm system received numerous accolades following the volume of prospects that succeeded at the major league level, including Baseball America bestowing the franchise with the Organization of the Year Award in 2011 and 2013.