2010 World Junior Championships in Athletics – Women's 4 × 100 metres relay
The women's 4x100 metres relay event at the 2010 World Junior Championships in Athletics was held in Moncton, New Brunswick, Canada, at Moncton Stadium on 23 and 24 July.
Medalists
Results
Final
24 July| Rank | Nation | Competitors | Time | Notes |
| USA | Stormy Kendrick Takeia Pinckney Dezerea Bryant Ashley Collier | 43.44 | ||
| GER | Nadja Bahl Leena Günther Tatjana Pinto Stefanie Pähler | 43.74 | ||
| NED | Dafne Schippers Loreanne Kuhurima Eva Lubbers Jamile Samuel | 44.09 | ||
| 4 | JAM | Siedatha Palmer Deandre Whitehorne Diandre Gilbert Danielle Williams | 44.24 | |
| 5 | NGR | Florence Nkiruka Bukola Abogunloko Margaret Etim Stella Silas | 44.84 | |
| 6 | CAN | Crystal Emmanuel Janelle Bell-Spence Leah Walkeden Loudia Laarman | 44.84 | |
| 7 | AUS | Rosie Lawson Ella Nelson Karlie Morton Caitlin Sargent | 45.57 | |
| UK | Rebekah Wilson Jodie Williams Emily Diamond Shaunna Thompson | DNF |