2010 World Junior Championships in Athletics – Men's 4 × 100 metres relay
The men'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 | Michael Granger Charles Silmon Eric Harris Oliver Bradwell | 38.93 | ||
| JAM | Brandon Tomlinson Bernard Brady O'Dean Skeen Dexter Lee | 39.55 | ||
| TRI | Jamol James Sabian Cox Moriba Morain Shermund Allsop | 39.72 | ||
| 4 | JPN | Takumi Kuki Ryo Onabuta Jun Kimura Shōta Iizuka | 39.89 | |
| 5 | GER | Roy Schmidt Robin Erewa Florian Hübner Felix Gehne | 39.97 | |
| 6 | THA | Jirapong Meenapra Tossaporn Boonhan Weerawat Pharueang Suppachai Chimdee | 40.26 | |
| NGR | Jonathan Nmaju Elvis Ukale Ayobani Oyebiyi Isah Salihu | DQ | IAAF rule 163.3 | |
| UK | Jordan Huggins Daniel Talbot Henry Tobais Kieran Showler-Davis | DNF |