| Event: | Women's marathon |
| Games: | 2015 |
| Venue: | Ontario Place West Channel |
| Dates: | July 18 |
| Competitors: | 17 |
| Nations: | 11 |
| Win Value: | 2:35:04 |
| Win Label: | Winning time |
| Gold: | Adriana Aparecida da Silva |
| Goldnoc: | BRA |
| Silver: | Lindsay Flanagan |
| Silvernoc: | USA |
| Bronze: | Rachel Hannah |
| Bronzenoc: | CAN |
| Prev: | 2011 |
The women's marathon competition of the athletics events at the 2015 Pan American Games took place on the 18 of July on a temporary circuit around the Ontario Place West Channel.[1] The defending Pan American Games champion is Adriana Aparecida da Silva of Brazil.
| World record | 2:15:25 | London, Great Britain | April 13, 2003 | ||
| Pan American Games record | 2:36:37 | Guadalajara, Mexico | October 23, 2011 |
See main article: article and Athletics at the 2015 Pan American Games – Qualification. Each National Olympic Committee (NOC) was able to enter up to two entrants providing they had met the minimum standard (2.55.00) in the qualifying period (January 1, 2014 to June 28, 2015).[2]
| 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 | |
|---|---|---|---|---|---|
| 2:35:40 | PR | ||||
| 2:36:30 | |||||
| 2:41:06 | |||||
| 2:41:31 | |||||
| 2:41:57 | |||||
| 2:42:47 | |||||
| 2:49:42 | |||||
| 2:51:23 | |||||
| 9 | 2:51:42 | ||||
| 10 | 2:52:27 | ||||
| DNF | |||||
| DNF | |||||
| DNF | |||||
| DNF | |||||
| DNF | |||||
| DNS | |||||
| DQ |