Athletics at the 1986 Commonwealth Games
Track events
100 m	men	women
200 m	men	women
400 m	men	women
800 m	men	women
1500 m	men	women
3000 m		women
5000 m	men
10,000 m	men	women
100 m hurdles		women
110 m hurdles	men
400 m hurdles	men	women
3000 m steeplechase	men
4×100 m relay	men	women
4×400 m relay	men	women
Road events
Marathon	men	women
30 km walk	men
Field events
High jump	men	women
Pole vault	men
Long jump	men	women
Triple jump	men
Shot put	men	women
Discus throw	men	women
Hammer throw	men
Javelin throw	men	women
Combined events
Heptathlon		women
Decathlon	men
v t e

The women's 400 metres hurdles event at the 1986 Commonwealth Games was held on 27 and 28 July at the Meadowbank Stadium in Edinburgh.^[1]

The winning margin was 1.61 seconds which as of 2024 remains the only time the women's 400 metres hurdles was won by more than 1.4 seconds at these games.

Gold	Silver	Bronze
Debbie Flintoff  Australia	Donalda Duprey  Canada	Jenny Laurendet  Australia

Qualification: First 3 of each heat (Q) and the next 2 fastest (q) qualified for the final.^[2]

Rank	Heat	Name	Nationality	Time	Notes
1	1	Gwen Wall	Canada	57.38	Q
2	1	Debbie Flintoff	Australia	58.06	Q
3	2	Jenny Laurendet	Australia	58.25	Q
4	2	Yvette Wray	England	58.60	Q
5	1	Aileen Mills	England	58.65	Q
6	1	Alyson Vandenbroek-Evans	Wales	58.83	q
7	2	Donalda Duprey	Canada	58.95	Q
8	2	Elaine McLaughlin	Northern Ireland	59.36	q
9	1	Simone Gandy	England	1:00.36
10	2	Andrea Page	Canada	1:00.96
11	2	Moira McBeath	Scotland	1:04.03

Rank	Lane	Name	Nationality	Time	Notes
	4	Debbie Flintoff	Australia	54.94	GR
	2	Donalda Duprey	Canada	56.55
	5	Jenny Laurendet	Australia	56.57
4	6	Gwen Wall	Canada	57.49
5	3	Yvette Wray	England	57.59
6	7	Aileen Mills	England	58.01
7	1	Elaine McLaughlin	Northern Ireland	58.28
8	8	Alyson Vandenbroek-Evans	Wales	58.31