The 1991 ITU Triathlon World Championships were held in Gold Coast, Australia on 12 and 13 October 1991.
Results
Men's Championship
| Rank | Name | Swim | Bike | Run | Time |
|---|---|---|---|---|---|
 |
Miles Stewart (
AUS) |
19:19 | 55:25 | 33:34 | 01:48:20 |
 |
Rick Wells (
NZL) |
18:48 | 55:59 | 33:34 | 01:48:22 |
 |
Mike Pigg (
USA) |
19:33 | 55:10 | 33:36 | 01:48:22 |
| 4 |
Harold Robinson (
USA) |
19:19 | 55:29 | 33:58 | 01:48:49 |
| 5 | 
Leandro Macedo (
BRA) |
19:36 | 57:11 | 32:42 | 01:49:33 |
| 6 | 
Simon Lessing (
GBR) |
19:34 | 58:03 | 32:08 | 01:49:48 |
| 7 |
Mark Dragan (
AUS) |
19:47 | 58:02 | 31:59 | 01:49:48 |
| 8 |
Stephen Foster (
AUS) |
19:46 | 56:55 | 33:15 | 01:50:00 |
| 9 | 
Patrick Girard (
FRA) |
21:40 | 56:28 | 32:27 | 01:50:39 |
| 10 |
Jim Riccitello (
USA) |
20:27 | 55:48 | 34:24 | 01:50:40 |
Women's Championship
| Rank | Name | Swim | Bike | Run | Time |
|---|---|---|---|---|---|
|
|
Joanne Ritchie (
CAN) |
21:58 | 01:02:08 | 37:55 | 02:02:04 |
|
|
Terri Smith-Ross (
CAN) |
22:27 | 01:02:58 | 36:45 | 02:02:10 |
|
|
Michellie Jones (
AUS) |
22:05 | 01:03:27 | 37:16 | 02:02:49 |
| 4 |
Isabelle Mouthon-Michellys (
FRA) |
22:05 | 01:03:19 | 38:09 | 02:03:35 |
| 5 | 
Catherine Davies (
ESP) |
22:41 | 01:03:56 | 37:02 | 02:03:41 |
| 6 |
Carol Montgomery (
CAN) |
22:07 | 01:02:28 | 39:24 | 02:04:00 |
| 7 |
Sue Schlatter (
CAN) |
23:52 | 01:02:31 | 37:57 | 02:04:21 |
| 8 |
Joy Hansen (
USA) |
22:04 | 01:04:15 | 38:02 | 02:04:23 |
| 9 |
Karen Smyers (
USA) |
22:06 | 01:03:19 | 39:02 | 02:04:30 |
| 10 |
Jan Ripple (
USA) |
22:03 | 01:03:28 | 39:32 | 02:05:05 |
| 11 | 
Simone Mortier (
GER) |
22:30 | 01:04:16 | 38:38 | 02:05:22 |
| 12 |
Ute Schäfer (
GER) |
24:02 | 01:02:15 | 40:56 | 02:07:13 |