James Thomas Popp (born December 21, 1964) is an American sports executive and a Canadian football icon, who has been recognized as one of the brightest minds in professional sports, known for his ability to both build expansion teams and rebuild established franchises into championship organizations. Popp has the uncanny ability to hire, develop, mentor top executives, coaches, and players that are spread across North America. Popp most recently was the general manager of the Toronto Argonauts football club of the Canadian Football League (CFL). He had previously served as Vice President, General Manager, Head Coach, Director of Football Operations, and Director of Player Personnel of the Montreal Alouettes, General Manager and Director of Player Personnel of the Baltimore Stallions, and the Director of Player Personnel and Wide Receiver Coach of the Saskatchewan Roughriders. Popp has become one of the most decorated General Managers in professional sports, leading three separate franchises to a total of 5 Grey Cups championship wins (1995 with the Baltimore Stallions; 2002, 2009, 2010 with the Montreal Alouettes; 2017 with the Toronto Argonauts) and his teams have appeared in 18 Divisional Championship games, 11 Grey Cups (the most appearances in a championship game by any General Manager in professional sports).