John Robert Ryan (29 December 1948 – 2 May 1982) was an Australian rugby union and professional rugby league footballer who played in the 1970s and 1980s. He played representative level rugby union (RU) for Australia and club level rugby league (RL) for the Penrith Panthers. Ryan, a wing, was born in Wahroonga, New South Wales and claimed a total of 6 international rugby caps for Australia. He scored nine tries for Australia, and scored at least one try in every rugby union international.