| Event: | Women's marathon |
| Games: | 2019 |
| Venue: | Parque Kennedy |
| Dates: | July 27 |
| Competitors: | 17 |
| Nations: | 11 |
| Win Value: | 2:30:55 [1] |
| Win Label: | Winning time |
| Gold: | Gladys Tejeda |
| Goldnoc: | PER |
| Silver: | Bethany Sachtleben |
| Silvernoc: | USA |
| Bronze: | Angie Orjuela |
| Bronzenoc: | COL |
| Prev: | 2015 |
The women's marathon competition of the athletics events at the 2019 Pan American Games took place on 27 July on a temporary circuit around the Parque Kennedy in Lima, Peru. The defending Pan American Games champion was Adriana Aparecida da Silva of Brazil. Gladys Tejeda from Peru won the gold medal.
| World record | 2:15:35 | London, Great Britain | April 14, 2003 | ||
| Pan American Games record | 2:35:40 | Toronto, Canada | July 18, 2015 |
| KEY: | bgcolor=ccffcc align=center | q | Fastest non-qualifiers | bgcolor=ccffcc align=center | Q | Qualified | NR | National record | PB | Personal best | SB | Seasonal best | DQ | Disqualified |
| Rank | Athlete | Nation | Time | Notes | |
|---|---|---|---|---|---|
| 2:30:55 | |||||
| 2:31:20 | |||||
| 2:32:27 | |||||
| 4 | 2:32:45 | ||||
| 5 | 2:32:49 | ||||
| 6 | 2:34:20 | ||||
| 7 | 2:35:06 | ||||
| 8 | 2:35:40 | ||||
| 9 | 2:40:38 | ||||
| 10 | 2:45:08 | ||||
| 11 | 2:46:04 | ||||
| 12 | 2:49:28 | ||||
| 13 | 2:50:09 | ||||
| 14 | 2:56:31 | ||||
| 15 | 2:56:39 | ||||
| 16 | 3:03:41 | ||||