See main article: 1975 Pan American Games.
The Swimming competition at the 7th Pan American Games was held in Mexico City, Mexico during the Games' run in 1975. It consisted of 29 long course (50m) events: 15 for males and 14 for females.[1] [2] [3] [4] [5] [6] [7]
| 100m freestyle | Richard Abbott  USA | 51.96 | Jack Babashoff USA | 52.26 | Bruce Robertson  Canada | 53.44 | |
| 200m freestyle | Jorge Delgado  Ecuador | 1:55.45 | Rick DeMont USA | 1:55.96 | Rex Favero USA | 1:57.08 | |
| 400m freestyle | Douglas Northway USA | 4:00.51 | Bobby Hackett USA | 4:03.38 | Djan Madruga  Brazil | 4:06.83 | |
| 1500m freestyle | Bobby Hackett USA | 15:53.10 | Paul Hartloff USA | 15:57.32 | Djan Madruga Brazil | 16:30.08 | |
| 100m backstroke | Peter Rocca USA | 58.31 | Bob Jackson USA | 58.90 | Rômulo Arantes Brazil | 59.16 | |
| 200m backstroke | Dan Harrigan USA | 2:06.69 | Mike Scarth Canada | 2:09.20 | Bob Jackson USA | 2:10.18 | |
| 100 m breaststroke | Rick Colella USA | 1:06.28 | Lawrence Dowler USA | 1:06.61 | José Fiolo Brazil | 1:08.12 | |
| 200m breaststroke | Rick Colella USA | 2:24.00 | Dave Heinbuch Canada | 2:28.96 | Gustavo Lozano  Mexico | 2:29.28 | |
| 100m butterfly | Mike Curington USA | 56.09 | Greg Jagenburg USA | 56.13 | Bruce Robertson CAN | 56.80 | |
| 200m butterfly | Greg Jagenburg USA | 2:03.42 | Steve Gregg USA | 2:04.06 | Jorge Delgado Ecuador | 2:05.11 | |
| 200m I.M. | Steve Furniss USA | 2:09.77 | Mike Curington USA | 2:10.17 | Bill Sawchuk Canada | 2:11.63 | |
| 400m I.M. | Steve Furniss USA | 4:40.38 GR | Rick Colella USA | 4:40.91 | Ricardo Marmolejo Mexico | 4:43.87 | |
| 4×100m Free Relay | USA Jack Babashoff Art Ruble Mike Grattan Richard Abbott | 3:27.67 | Canada Bruce Robertson Gary MacDonald Michael Bloahdal Steve Hardy | 3:36.24 | Mexico Guillermo García Eduardo Pérez Jorge Necochea Ricardo Sasser | 3:39.17 | |
| 4×200m Free Relay | USA Rick DeMont Rex Favero Brad Horner Michael Curington | 7:50.96 | Canada Steve Hardy Michael Bloahdal Daryl Skilling Bruce Robertson | 8:00.91 | Brazil Djan Madruga José Namorado Paul Jovanneau Rômulo Arantes | 8:02.36 | |
| 4×100m Medley Relay | USA Peter Rocca Rick Colella Michael Curington Jack Babashoff | 3:53.81 | Canada Michael Scarth Camil Chevalier Bruce Robertson Gary MacDonald | 3:58.95 | Brazil Akcel de Godoy José Namorado Rômulo Arantes José Fiolo | 3:59.05 | |
| 100m freestyle | Kim Peyton USA | 58.24 | Jill Sterkel USA | 58.57 | Jill Quirk Canada | 58.92 | |
| 200m freestyle | Kim Peyton USA | 2:04.57 GR | Gail Amundrud Canada | 2:05.87 | Anne Jardin Canada | 2:07.68 | |
| 400m freestyle | Kathy Heddy USA | 4:23.00 GR | Kathie Wickstrand USA | 4:27.66 | Michele Oliver Canada | 4:30.20 | |
| 800m freestyle | Wendy Weinberg USA | 9:05.57 | Mary Montgomery USA | 9:06.70 | Janice Stenhouse Canada | 9:17.87 | |
| 100m backstroke | Lynn Chénard Canada | 1:06.59 GR | Rosemary Boone USA | 1:07.18 | Jenny Kemp USA | 1:07.29 | |
| 200m backstroke | Donna Wennerstrom USA | 2:19.93 GR | Lynn Chénard Canada | 2:21.26 | Cheryl Gibson Canada | 2:22.68 | |
| 100m breaststroke | Lauri Siering USA | 1:15.17 | Marcia Morey USA | 1:16.25 | Marion Stuart Canada | 1:16.40 | |
| 200m breaststroke | Lauri Siering USA | 2:42.35 | Joann Baker Canada | 2:42.96 | Marcia Morey USA | 2:45.58 | |
| 100m butterfly | Camille Wright USA | 1:02.71 | Peggy Tosdal USA | 1:03.37 | Wendy Quirk Canada | 1:05.07 | |
| 200 m butterfly | Camille Wright USA | 2:18.57 | Cheryl Gibson Canada | 2:21.95 | Rosemary Ribeiro Brazil | 2:22.47 | |
| 200m I.M. | Kathy Heddy USA | 2:22.22 | Jennie Franks USA | 2:23.37 | Cheryl Gibson Canada | 2:24.22 | |
| 400m I.M. | Kathy Heddy USA | 5:06.05 | Cheryl Gibson Canada | 5:06.87 | Jennie Franks USA | 5:08.68 | |
| 4×100m Freestyle Relay | USA Kathy Heddy Bonnee Brown Jill Sterkel Kim Peyton | 3:53.31 | Canada Gail Amundrud Anne Jardin Wendy Quirk Janice Stenhouse | 3:54.95 | Brazil Christiane Paquelet Lucy Burle Maria Guimarães Rosemary Ribeiro | 4:12.20 | |
| 4×100m Medley Relay | USA Rosemary Bonne Marcia Morey Camille Wright Kim Peyton | 4:22.34 | Canada Lynn Chenard Joanne Baker Wendy Quirk Jill Quirk | 4:24.84 | Brazil Christiane Paquelet Cristina Teixeira Flávia Nadalutti Lucy Burle | 4:37.67 | |