| Event: | Men's 4 × 100 metre medley relay |
| Games: | 1986 |
| Venue: | Royal Commonwealth Pool |
| Competitors: | 41 |
| Nations: | 9 |
| Win Value: | 3:44.00 GR |
| Gold: | Mark Tewksbury Victor Davis Tom Ponting Alex Baumann Mike West |
| Goldcga: | CAN |
| Silver: | Neil Harper Adrian Moorhouse Andy Jameson Roland Lee Nick Gillingham |
| Silvercga: | ENG |
| Bronze: | Carl Wilson Brett Stocks Barry Armstrong Greg Fasala |
| Bronzecga: | AUS |
| Prev: | 1982 |
| Next: | 1990 |
The men's 4 × 100 metre medley relay competition of the swimming events at the 1986 Commonwealth Games took place on 30 July.
Prior to the competition, the existing world and championship records were as follows.
The following records were established during the competition:
9 teams participated in 2 heats.[1]
| Rank | Heat | Lane | Nation | Athletes | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 1 | - | 3:53.67 | Q | |||
| 2 | 2 | - | 3:54.77 | Q | |||
| 3 | 1 | - | 3:54.84 | Q | |||
| 4 | 2 | - | 3:54.90 | Q | |||
| 5 | 2 | - | 4:02.86 | Q | |||
| 6 | 1 | - | 4:03.02 | Q | |||
| 7 | 2 | - | 4:05.22 | Q | |||
| 8 | 1 | - | 4:09.56 | Q | |||
| 9 | 2 | - | 4:34.43 |
The results of the final are below.[2]
| Rank | Lane | Nation | Athletes | Time | Notes | |
|---|---|---|---|---|---|---|
| 5 | 3:44.00 | |||||
| 6 | 3:44.85 | |||||
| 4 | 3:45.86 | |||||
| 3 | 3:48.58 | |||||
| 2 | 3:54.05 | |||||
| 7 | 3:56.99 | |||||
| 1 | 4:00.29 | |||||
| 8 | 4:07.54 |