John Mozeliak (born January 18, 1969) is the current Senior Vice President and General Manager (GM) of the St. Louis Cardinals of Major League Baseball (MLB). So far his only GM position, the Cardinals hired Mozeliak as the twelfth GM in franchise history after the 2007 season after serving and training as Walt Jocketty's assistant, despite lacking a professional baseball playing background.
During Mozeliak's tenure as GM, the Cardinals have made six playoff appearances, won one World Series title, and two National League pennants. Each of those teams has also finished with a winning record. The Cardinals' minor league farm system has received numerous accolades for the volume of prospects that have succeeded at the major league level. Baseball America recognized the franchise as Organization of the Year in 2011 and 2013. Mozeliak is signed through the 2018 season.
Mozeliak attended Fairview High School in Boulder, Colorado. He played for the school's baseball team as a pitcher and first baseman. He also played American Legion baseball. Mozeliak attended the University of Arizona before ultimately graduating from the University of Colorado at Boulder.