The women's 4 × 400 metres relay competition of the athletics events at the 1979 Pan American Games took place on 14 July at the Estadio Sixto Escobar. The defending Pan American Games champion was the Canadian team.

Records Prior to this competition, the existing world and Pan American Games records were as follows: World record 3:19.23Montreal, CanadaJuly 31, 1976Pan American Games record 3:30.36Mexico City, Mexico1975

Results All times shown are in minutes and seconds.

KEY:WRWorld RecordGRPan American Record

Final RankNationCompetitorsTimeNotesSharon Dabney, Patricia Jackson, Rosalyn Bryant, Essie Kelley3:29.4GRAna Fidelia Quirot, Nery McKeen, Ana Luisa Guibert, Aurelia Pentón3:36.3Micheline Racette, Marita Payne, Jeanette Wood, Anne Mackie-Morelli3:37.64Tânia Miranda, Margit Weise, Sueli Machado, Joyce dos Santos3:45.75Georgina López, Nilsa Paris, Ileana Hocking, Angelita Lind3:49.4

References