# 2024 World Athletics U20 Championships – Men's 4 × 100 metres relay

The men's 4 × 100 metres relay at the 2024 World Athletics U20 Championships was held at the Estadio Atlético de la VIDENA in Lima, Peru on 30 and 31 August 2024.

## Records

U20 standing records prior to the 2024 World Athletics U20 Championships were as follows:
| Record | Nation | Mark | Location | Date |
| World U20 Record | South Africa | 38.51 | Nairobi, Kenya | 22 August 2021 |
| Championship Record | South Africa | 38.51 | Nairobi, Kenya | 22 August 2021 |
| World U20 Leading | United States | 38.23 | Gainesville, United States | 30 March 2024 |

## Results
### Heats

First 1 of each heat (Q) plus 4 fastest times (q) qualify to Final.

#### Heat 1

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 6 | South Korea | Kim Jeong-yoon, Nwamadi Joel-jin, Kim Dong-jin, Hwang Eui-chan | 39.71 | Q, NU20R |
| 2 | 2 | France | Gaël Delaumenie, Ylann Bizasene, Dejan Ottou, Hugo Jacquet-Dzong | 39.73 | q, SB |
| 3 | 8 | Australia | Cody Hasler, Frankleen Newah-Jarfoi, Archer McHugh, Sebastian Sultana | 39.80 | q |
| 4 | 3 | Spain | Carlos Dorado, Jorge Hernández, Rodrigo Fito, Alejandro Rueda | 40.21 | |
| 5 | 7 | Grenada | Shaquane Toussaint, Emilio Bishop, Ethan Sam, Samuel Green | 40.63 | NU20R |
| – | 4 | Switzerland | Marc Hofer, Jonathan Gou Gomez, Fionn Bolliger, Kevin Ray | DNF | |
| – | 5 | South Africa | Tshepo Tyantini, Bertie Cruywagen, Bradley Nkoana, Neo Modibe | DQ | TR24.7[L] |

#### Heat 2

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 5 | Hong Kong | Chan Yat Lok, King Yip, Kwok Chun Ting, James Chan | 39.97 | Q |
| 2 | 3 | Sri Lanka | Malith Thamel, Dineth Weeraratna, Indusara Rajamuni, Merone Wijesinghe | 40.14 | |
| 3 | 2 | China | Kong Peng, He Jinxian, Huang Youchao, Zeng Keli | 40.18 | |
| 4 | 4 | Zimbabwe | Brendon Muvimi, David Nyamufarira, Caledon Ruwende, Panashe Nhenga | 40.40 | NU20R |
| 5 | 7 | Finland | László Merényi, Kalle Hirvi, Alexander Mitchell, Juho Venäläinen | 40.46 | SB |
| 6 | 9 | Peru | Paolo Silva, Aron Earl, Adrian Alonso, Mariano Fioleduardo | 41.80 | SB |
| – | 6 | Brazil | Matheus Geronimo, Wesley Dionisio, Joao Santini, Ryan De Souza | DNF | |
| – | 8 | United States | Brayden Williams, James Bauman, Braylon Thompson, Cordial Vann | DNF | |

#### Heat 3

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 8 | Thailand | Wirayut Daenkhanob, Sarawut Nuansi, Chutithat Pruksorranan, Puripol Boonson | 39.56 | Q, NU20R |
| 2 | 2 | Great Britain | Fabian Powell, Joel Masters, Dean Patterson, Teddy Wilson | 39.75 | q, SB |
| 3 | 5 | Germany | Maximilian Achhammer, Noah Müller, Felix Schulze, Milian Zirbus | 40.06 | |
| 4 | 6 | Czech Republic | Jakub Toužín, Filip Vojáček, Jiří Synek, Dominik Mráček | 40.41 | |
| 5 | 9 | Canada | Isaac Chandra, Pishon Haughton, Junior Imoukhuede, Keon Rude | 40.70 | SB |
| 6 | 7 | Chile | Nicolas Daudet, Benjamin Aravena, Tomas Leon, Raimundo Velasco | 41.62 | |
| 7 | 3 | Bulgaria | Radostin Milenov, Nikola Karamanolov, Hristivan Kasabov, Hristo Iliev | 41.92 | SB |
| – | 4 | Japan | Fukuto Komuro, Kei Wakana, Katsuki Sato, Naoki Nishioka | DQ | TR24.7[L] |

#### Heat 4

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 9 | Jamaica | Jace Witter, Gary Card, Nyrone Wade, Deandre Daley | 39.54 | Q, SB |
| 2 | 7 | Trinidad and Tobago | Che Wickham, Kadeem Chinapoo, Hakeem Chinapoo, Dylan Woodruffe | 39.77 | q, SB |
| 3 | 2 | Nigeria | Caleb John, Caleb Joshua, Oseiwe Salami, Chidera Ezeakor | 40.28 | SB |
| 4 | 3 | Denmark | Valentin Jensen, Hector Wandt, Eiri Glerfoss, Sophus Ramsgaard Jensen | 40.31 | SB |
| 5 | 4 | Mexico | Eduardo Loya, Alejandro Cardenas, Jonathan Padilla, Rafael Buelna | 40.34 | NU20R |
| 6 | 6 | Italy | Fabrizio Caporusso, Mattia Silvestrelli, Eduardo Longobardi, Daniele Inzoli | 40.44 | SB |
| 7 | 5 | Poland | Michał Gorzkowicz, Sebastian Libura, Tomasz Bajraszewski, Adrian Lepionka | 40.99 | |
| – | 8 | Ecuador | | DNS | |

### Final

| Rank | Lane | Nation | Athletes | Time | Notes |
| | 7 | Jamaica | Jace Witter, Gary Card, Nyrone Wade, Deandre Daley | 39.18 | SB |
| | 4 | Great Britain | Jake Odey-Jordan, Joel Masters, Dean Patterson, Teddy Wilson | 39.20 | SB |
| | 8 | Thailand | Wirayut Daenkhanob, Sarawut Nuansi, Chutithat Pruksorranan, Puripol Boonson | 39.39 | NU20R |
| 4 | 9 | France | Gaël Delaumenie, Ylann Bizasene, Dejan Ottou, Hugo Jacquet-Dzong | 39.43 | |
| 5 | 2 | Australia | Frankleen Newah-Jarfoi, Sebastian Sultana, Zachary Della Rocca, Gout Gout | 39.64 | |
| 6 | 6 | South Korea | Kim Jeong-yoon, Nwamadi Joel-jin, Kim Dong-jin, Na Hyun-joo | 39.80 | |
| 7 | 3 | Trinidad and Tobago | Che Wickham, Kadeem Chinapoo, Hakeem Chinapoo, Dylan Woodruffe | 39.99 | |
| 8 | 5 | Hong Kong | Chan Yat Lok, Magnus Johannsson, Kwok Chun Ting, James Chan | 40.26 | |