The Men's 4x400 metres relay event at the 2011 European Athletics U23 Championships was held in Ostrava, Czech Republic, at Městský stadion on 16 and 17 July.
[1][2][3] †: Competed only in heat.
17 July 2011 / 19:05 Qualified: First 3 in each heat (Q) and 2 best performers (q) advance to the Final 16 July 2011 / 11:50 16 July 2011 / 11:58 According to an unofficial count, 47 athletes from 10 countries participated in the event.