John Brady is a common name that may refer to various individuals across different fields. One notable John Brady is a former professional American football player who played as a quarterback in the National Football League (NFL). He is recognized for his contributions to the sport during his career. In addition to sports, John Brady may also refer to individuals in academia or business. For instance, there are scholars and professionals named John Brady who have made significant contributions in areas such as education and entrepreneurship. Each John Brady has a unique background and achievements that reflect their respective fields.