Swimming at the 1983 Pan American Games – Men's 4 × 100 metre medley relay
# Swimming at the 1983 Pan American Games – Men's 4 × 100 metre medley relay

The men's 4 × 100 metre medley relay competition of the swimming events at the 1983 Pan American Games took place on 22 August. The last Pan American Games champion was the United States.

## Results

All times are in minutes and seconds.

| KEY: | q | Fastest non-qualifiers | Q | Qualified | GR | Games record | NR | National record | PB | Personal best | SB | Seasonal best |
| - | - | - | - | - | - | - | - | - | - | - | - | - |

### Final

The final was held on August 22.

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| | Rick Carey (55.60) Steve Lundquist (1:02.01) Matt Gribble (53.47) Rowdy Gaines (49.34) | United States | 3:40.42 | WR |
| | - - - - | Canada | 3:48.10 | |
| | - - - - | Venezuela | 3:50.52 | SA, AR |
| 4 | - - - - | Brazil | 3:52.15 | NR |
| 5 | - - - - | Cuba | 4:04.12 | |
| 6 | - - - - | Suriname | 4:16.62 | |
| 7 | - - - - | Argentina | DQ | |
| 8 | - - - - | - | - | |
