| Full name: | John Pentland Mahaffy |
| Born: | 26th February 1839, near Vevey, Switzerland |
| Died: | 30th April 1919, Dublin, Ireland |
| Batting: | Left-hand batter |
| Bowling: | Left-arm medium pace |
| Relations: | Grandson: JP Mahaffy |
| Teams: | Dublin University (Miscellaneous: 1861-1877); Phoenix (Miscellaneous: 1876-1877); All teams |
| Lists of matches and more detailed statistics | |