Swimming at the 2010 Summer Youth Olympics – Girls' 4 × 100 metre freestyle relay
# Swimming at the 2010 Summer Youth Olympics – Girls' 4 × 100 metre freestyle relay

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 |
| - | - | - | - |
| | 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 |
