Triathlon at the Pan American Games
Triathlon has been a sport of the Pan American Games since the 1995 games.Mixed competition
Nations
The following nations have taken part in the triathlon competition.
| Nation | 95 | 99 | 03 | 07 | 11 | 15 | Total |
| 6 | 6 | 6 | 6 | 5 | 6 | 6 |
| - | - | - | - | - | 1 | 1 |
| 1 | - | - | - | 1 | 1 | 3 |
| - | - | - | - | - | 1 | 1 |
| - | - | - | 1 | 2 | 1 | 3 |
| - | 1 | 1 | 2 | 1 | 1 | 4 |
| 6 | 5 | 6 | 6 | 6 | 6 | 6 |
| 6 | 5 | 6 | 6 | 3 | 6 | 6 |
| 1 | - | - | - | - | - | 1 |
| 6 | 1 | 3 | 3 | 6 | 6 | 6 |
| 5 | 2 | 3 | 4 | 4 | 1 | 6 |
| 4 | 3 | 5 | 4 | 3 | 2 | 6 |
| - | 4 | 3 | 6 | 3 | 4 | 5 |
| - | - | 4 | 3 | - | 1 | 3 |
| - | - | 3 | 2 | 4 | 6 | 4 |
| - | - | - | 1 | 1 | - | 2 |
| - | - | - | 1 | - | - | 1 |
| 3 | - | 1 | 1 | 3 | 3 | 5 |
| 3 | - | - | - | - | - | 1 |
| - | 1 | - | - | - | - | 1 |
| 6 | 4 | 5 | 6 | 6 | 6 | 6 |
| - | 1 | - | - | | | 1 |
| - | - | - | - | 1 | 1 | 2 |
| - | - | - | - | 1 | 1 | 2 |
| - | - | 1 | - | 1 | 1 | 3 |
| - | - | 1 | - | - | 3 | 2 |
| 1 | - | - | 2 | 3 | 3 | 4 |
| - | - | 1 | - | - | - | 1 |
| 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| - | - | 1 | 2 | 2 | 1 | 4 |
| - | 1 | 3 | 4 | 4 | 2 | 5 |
| 1 | - | - | - | 1 | - | 2 |
| Total NOCs | 14 | 13 | 18 | 20 | 22 | 24 | 32 |
