1991 ITU Triathlon World Cup
| Series details | |
|---|---|
| Races | 11 | 
| Men's World Cup | |
| 1st | Leandro Macedo (BRA) | 
| 2nd | Greg Welch (AUS) | 
| 3rd | Andrew McNaughton (CAN) | 
| Most wins | Greg Welch and Mike Pigg (2) | 
| Women's World Cup | |
| 1st | Karen Smyers (USA) | 
| 2nd | Terri Smith-Ross (CAN) | 
| 3rd | Catherine Davies (ESP) | 
| Most wins | Karen Smyers (4) | 
The 1991 ITU Triathlon World Cup was a series of triathlon races organised by the International Triathlon Union (ITU) for elite-level triathletes. There were eleven races held in eight countries, most of them held over a distance of 1500 m swim, 40 km cycle, 10 km run (an Olympic-distance triathlon).