Karlene Vivienne Haughton (born 18 October 1972 in Bethany, Saint Ann, Jamaica) is a Canadian retired athlete specialising in the 400 metres hurdles. She changed allegiance from her native Jamaica in 1998.
Her personal best in the event is 55.11 set in 1997.
Competition record
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
| Representing Jamaica | |||||
| 1991 | CARIFTA Games (U20) | Port of Spain, Trinidad and Tobago | 3rd | 100 m hurdles | 14.65 (w) |
| 1994 | Commonwealth Games | Victoria, British Columbia, Canada | 7th | 400 m hurdles | 57.00 |
| 1997 | World Championships | Athens, Greece | 13th (sf) | 400 m hurdles | 55.33 |
| Representing Canada | |||||
| 1998 | Commonwealth Games | Kuala Lumpur, Malaysia | 3rd | 400 m hurdles | 55.53 |
| 3rd | 4 × 400 m relay | 3:29.97 | |||
| 1999 | Pan American Games | Winnipeg, Manitoba, Canada | 4th | 400 m hurdles | 55.62 |
| World Championships | Seville, Spain | – | 400 m hurdles | DQ | |
| 9th (h) | 4 × 400 m relay | 3:28.47 | |||
| 2000 | Olympic Games | Sydney, Australia | 12th (h) | 4 × 400 m relay | 3:27.36 |
| 2001 | Jeux de la Francophonie | Ottawa, Ontario, Canada | 2nd | 400 m hurdles | 56.19 |
| World Championships | Edmonton, Alberta, Canada | 11th (sf) | 400 m hurdles | 55.68 | |
| 2002 | Commonwealth Games | Manchester, United Kingdom | 3rd | 400 m hurdles | 56.13 |
| 5th | 4 × 400 m relay | 3:32.24 | |||