Swimming at the 2010 Summer Youth Olympics – Girls' 4 x 100 metre freestyle relay
| Swimming at the 2010 Summer Youth Olympics  | |||
|---|---|---|---|
| Freestyle events | |||
| 50 m | boys | girls | |
| 100 m | boys | girls | |
| 200 m | boys | girls | |
| 400 m | boys | girls | |
| Backstroke events | |||
| 50 m | boys | girls | |
| 100 m | boys | girls | |
| 200 m | boys | girls | |
| Breaststroke events | |||
| 50 m | boys | girls | |
| 100 m | boys | girls | |
| 200 m | boys | girls | |
| Butterfly events | |||
| 50 m | boys | girls | |
| 100 m | boys | girls | |
| 200 m | boys | girls | |
| Individual medley events | |||
| 200 m | boys | girls | |
| Freestyle relay events | |||
| 4×100 m | boys | girls | mixed |
| Medley relay events | |||
| 4×100 m | boys | girls | mixed |
The girls' 4 × 100 metre freestyle relay event at the 2010 Youth Olympic Games took place on August 19, at the Singapore Sports School.
Medalists
 China | 3:46.64 |
 Germany | 3:49.02 |
 Canada | 3:49.12 |
Heats
Heat 1
| Rank | Lane | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | 3 | Germany |
3:54.31 | Q |
| 2 | 4 |  Australia |
3:54.64 | Q |
| 3 | 5 |  Brazil |
3:54.87 | Q |
| 4 | 7 |  United States |
3:56.12 | Q |
| 6 |  Italy |
DNS | ||
| 2 |  Russia |
DSQ |
Heat 2
| Rank | Lane | Nationality | Time | Notes |
|---|---|---|---|---|
| 1 | 3 | China |
3:54.12 | Q |
| 2 | 4 | Canada |
3:54.33 | Q |
| 3 | 6 |  Hungary |
3:57.34 | Q |
| 4 | 5 |  Singapore |
4:01.27 | Q |
| 5 | 7 |  South Africa |
4:02.12 | |
| 6 | 2 |  Japan |
4:02.29 |
Final
| Rank | Lane | Nationality | Time | Notes |
|---|---|---|---|---|
 |
4 | China |
3:46.64 | |
 |
5 | Germany |
3:49.02 | |
 |
3 | Canada |
3:49.12 | |
| 4 | 6 | Australia |
3:51.81 | |
| 5 | 2 | Brazil |
3:52.86 | |
| 6 | 7 | United States |
3:54.26 | |
| 7 | 1 | Hungary |
3:56.42 | |
| 8 | 8 | Singapore |
4:00.43 |