John Samuel McConnell (born December 31, 1975) is a former Major League Baseball pitcher. He played during one season at the major league level for the Atlanta Braves.
McConnell attended Ball State University, and in 1996 he played collegiate summer baseball with the Harwich Mariners of the Cape Cod Baseball League.
He was selected by the Pittsburgh Pirates in the 11th round of the 1997 MLB Draft. McConnell played his first professional season with their Single-A Augusta GreenJackets, Single-A Advanced Lynchburg Hillcats, and Double-A Carolina Mudcats in 1998. McConnell was released by the Pirates during spring training 2002, and signed with the Philadelphia Phillies the next day. After one year in the Phillies organization, he signed with the Atlanta Braves on November 12, 2002, and played his last affiliated season for Atlanta's Triple-A Richmond Braves in 2005. His last professional season was with the Somerset Patriots of the independent Atlantic League in 2006.