2010 World Junior Championships in Athletics – Women's 4 × 400 metres relay
The women's 4x400 metres relay event at the 2010 World Junior Championships in Athletics was held in Moncton, New Brunswick, Canada, at Moncton Stadium on 24 and 25 July.
Medalists
Results
Final
25 July| Rank | Nation | Competitors | Time | Notes |
| USA | Diamond Dixon Stacey-Ann Smith Laura Roesler Regina George | 3:31.20 | ||
| NGR | Florence Nkiruka Bukola Abogunloko Chizoba Okodogbe Margaret Etim | 3:31.84 | ||
| JAM | Jody-Ann Muir Janieve Russell Natoya Goule Chris Ann Gordon | 3:32.24 | ||
| 4 | BAH | Rashan Brown Amara Jones Katrina Seymour Shaunae Miller | 3:33.43 | |
| 5 | CAN | Katherine Reid Annie Leblanc Carly Paracholski Chanice Chase | 3:35.08 | |
| 6 | RUS | Alisa Matyash Vera Rudakova Ayvika Malanova Maria Lebedeva | 3:36.94 | |
| 7 | GER | Lisa Hofmann Julia Schaefers Lena Menzel Christina Zwirner | 3:40.29 | |
| 8 | POL | Magdalena Gorzkowska Małgorzata Hołub Joanna Jóźwik Martyna Opoń | 3:42.70 |