Swimming at the 1971 Pan American Games – Women's 400 metre freestyle
The women's 400 metre freestyle competition of the swimming events at the 1971 Pan American Games took place on 9 August. The last Pan American Games champion was Debbie Meyer of US.
This race consisted of eight lengths of the pool, with all eight being in the freestyle stroke.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 |
Heats
Final
The final was held on August 9.
| Rank | Name | Nationality | Time | Notes |
| Ann Simmons | | 4:26.2 | |
| Jill Strong | | 4:36.2 | |
| Angela Coughlan | | 4:38.9 | |
| 4 | - | - | - | |
| 5 | Rosalinda Angel | | 4:45.3 | |
| 6 | Olga Lucia de Angulo | | 4:46.4 | |
| 7 | Sandra Smith | | 4:50.6 | |
| 8 | Patrícia Lopez | | 5:09.1 | |
