| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | John J. "J. J."•Ryan | 
| Used name | J. J.•Ryan | 
| Other names | Jack Ryan | 
| Born | 23 February 1893 in Ballyglasheen, Kilfeacle, Tipperary (IRL) | 
| Died | 6 January 1963 in Tipperary, Tipperary (IRL) | 
| Affiliations | Tipperary AC, Tipperary (IRL) | 
| NOC |  Ireland | 
In his teens, J. J. Ryan worked at a lime kiln near his home and was often sent by his fellow workers to a shop in Bansha, and he would run the entire way, getting back quicker than seemed possible to his co-workers. They advised him to take up athletics and from 1915-26 he won Irish titles from 880 yards up to 4 miles, and was also Irish cross-country champion three times. In 1925 Ryan had his greatest year, placing second at the International Cross-Country Championship and winning the Berlin International cross-country meet. Ryan started out with Dromline Athletic Club but joined Tipperary Athletic Club in 1923. Ryan was a successful farmer at Cordangan, Tipperary, and regularly won ribbons at local agricultural shows. A few weeks prior to his death, he was chosen for the Knocknagow Award, given to an outstanding Tipperary sportsperson, although it would be awarded posthumously.
Personal Best: 10000 – unknown.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1924 Summer Olympics | Athletics |  IRL | J. J. Ryan | |||
| 5,000 metres, Men (Olympic) | ||||||
| 10,000 metres, Men (Olympic) | ||||||
| 3,000 metres Steeplechase, Men (Olympic) | ||||||
| Cross-Country, Individual, Men (Olympic) |