The men's 4x100 metres relay event at the 2015 European Athletics U23 Championships was held in Tallinn, Estonia, at Kadriorg Stadium on 12 July.
| Gold | Guy-Elphège Anouman Mickaël-Meba Zézé Ken Romain Stuart Dutamby  | |
| Silver | Marcel Kadlec Michal Desenský Jan Jirka Zdeněk Stromšík  | |
| Bronze | Aleksandr Yeliseyev Dmitriy Sychev Denis Ogarkov Kirill Chernukhin  |
12 July
| Rank | Name | Nationality | Reaction Time | Time | Notes | ||
|---|---|---|---|---|---|---|---|
| align=left | | Guy-Elphège Anouman Mickaël-Meba Zézé Ken Romain Stuart Dutamby | 0.190 | 39.36 | |||
| align=left | | Marcel Kadlec Michal Desenský Jan Jirka Zdeněk Stromšík | 0.153 | 39.38 | |||
| align=left | | Aleksandr Yeliseyev Dmitriy Sychev Denis Ogarkov Kirill Chernukhin | 0.176 | 39.45 | NUR | ||
| 4 | align=left |  | Ioan Pitigoi Alexandru Terpezan Ionut Andrei Neagoe Daniel Budin | 0.160 | 39.77 | NUR | |
| 5 | align=left |  | Jonathon Browning Eanna Madden Kieran Elliott Marcus Lawler | 0.180 | 39.89 | NUR | |
| 6 | align=left |  | Jonas Tapani Halonen Joachim Sandberg Håkon Morken Salum Ageze Kashafali | 0.143 | 40.04 | NUR | |
| align=left | Rik Jansen Simon Blok Marvin Douma Hensley Paulina | 0.163 | DQ | ||||
| align=left |  | Adam Denguir Chris Brusenback Jan Wocalewski Jakob Lindbom | 0.156 | DNF |
12 July
| Rank | Nation | Competitors | Reaction Time | Time | Notes | ||
|---|---|---|---|---|---|---|---|
| 1 | align=left | | Pierre Chalus Mickaël-Meba Zézé Ken Romain Stuart Dutamby | 0.173 | 39.76 | Q | |
| 2 | align=left | Rik Jansen Simon Blok Marvin Douma Hensley Paulina | 0.159 | 39.89 | Q | ||
| 3 | align=left | | Aleksandr Yeliseyev Dmitriy Sychev Denis Ogarkov Kirill Chernukhin | 0.185 | 39.96 | Q | |
| 4 | align=left | | Adam Denguir Chris Brusenback Jan Wocalewski Jakob Lindbom | 0.156 | 40.08 | q | |
| 5 | align=left | | Jonas Tapani Halonen Joachim Sandberg Even Pettersen Salum Ageze Kashafali | 0.159 | 40.50 | q | |
| 6 | align=left | Yanier Bello Silvan Wicki Bastien Mouthon Brahian Peña | 0.199 | 40.61 | |||
| 7 | align=left |  | Zalán Kádasi Miklós Kovács Bálint Móricz Valdó Szűcs | 0.151 | 41.11 | ||
| align=left | José Lopes Ricardo Ribeiro Ricardo dos Santos Carlos Nascimento | DQ |
| Rank | Nation | Competitors | Reaction Time | Time | Notes | ||
|---|---|---|---|---|---|---|---|
| 1 | align=left | | Marcel Kadlec Michal Desenský Jan Jirka Zdeněk Stromšík | 0.145 | 39.76 | Q | |
| 2 | align=left | | Ioan Pitigoi Alexandru Terpezan Ionut Andrei Neagoe Daniel Budin | 0.173 | 40.08 | NUR Q | |
| 3 | align=left | | Jonathon Browning Eanna Madden Kieran Elliott Marcus Lawler | 0.163 | 40.11 | NUR Q | |
| 4 | align=left | Jurgis Karulis Kristaps Zūdiņš Reinis Kreipans Rihards Parandjuks | 0.134 | 41.95 | |||
| align=left |  | Dawid Olszowy Dominik Kopeć Karol Zalewski Krzysztof Grześkowiak | 0.152 | DQ | |||
| align=left |  | Federico Cattaneo Lorenzo Bilotti Giacomo Tortu Giovanni Galbieri | 0.174 | DQ | |||
| align=left |  | Elmo Lakka Otto Ahlfors Samuli Samuelsson Roope Saarinen | 0.147 | DNF | |||
| align=left | Bastian Heber Raphael Müller Maximilian Ruth Kai Alexander Sparenberg | 0.195 | DQ |
According to an unofficial count, 66 athletes from 16 countries participated in the event.