| Event: | 2018 World Junior Speed Skating Championships |
| Venue: | Utah Olympic Oval, Salt Lake City, United States |
| Dates: | 9–11 March |
| Competitors: | 116 |
| Nations: | 24 |
| Goldm: | Allan Dahl Johansson |
| Goldmnation: | Norway |
| Silverm: | Tyson Langelaar |
| Silvermnation: | Canada |
| Bronzem: | Francesco Betti |
| Bronzemnation: | Italy |
| Goldw: | Joy Beune |
| Goldwnation: | Netherlands |
| Silverw: | Jutta Leerdam |
| Silverwnation: | Netherlands |
| Bronzew: | Elisa Dul |
| Bronzewnation: | Netherlands |
| Prev: | 2017 |
| Next: | 2019 |
The 2018 World Junior Speed Skating Championships took place from 9 to 11 March 2018 in Utah Olympic Oval, Salt Lake City, United States. They were the 45th World Junior Speed Skating Championships.
The results of the Championships:
| 500 m | 34.66 | 34.87 | 35.00 | ||||
| 1000 m | 1:07.76 WRJ | 1:08.02 | 1:08.33 | ||||
| 1500 m | 1:43.62 | 1:44.59 | 1:45.11 | ||||
| 5000 m | 6:20.75 | 6:26.90 | 6:27.17 | ||||
| Mass start | 30 pts | 20 pts | 10 pts | ||||
| Team Pursuit | Lee Do-hyung Kim Min-seok Chung Jae-won | 3:43.55 WRJ | Riki Hayashi Taishi Yamamoto Kohki Takamisawa | 3:44.68 | Sergei Loginov Egor Shkolin Aleksandr Podolskii | 3:44.73 | |
| Team Sprint | Park Seong-hyeon Chung Jae-woong Kim Min-seok | 1:20.46 WRJ | Ole Jeske Paul Galczinsky Max Reder | 1:20.76 | Sergei Loginov Ruslan Zakharov Aleksandr Podolskii | 1:20.94 | |
| Overall Classification | 143.060 WRJ | 145.061 | 145.577 |
The results of the Championships:
| 500 m | 38.22 | 38.26 | 38.48 | ||||
| 1000 m | 1:14.21 WRJ | 1:14.38 | 1:15.31 | ||||
| 1500 m | 1:54.21 WRJ | 1:54.31 | 1:56.83 | ||||
| 3000 m | 3:59.47 WRJ | 4:05.19 | 4:05.96 | ||||
| Mass start | 30 pts | 20 pts | 10 pts | ||||
| Team Pursuit | Joy Beune Elisa Dul Jutta Leerdam | 2:59.55 WRJ | Karuna Koyama Lemi Williamson Yui Fujimori | 3:02.68 | Park Chae-eun Yoon Jung-min Park Ji-woo | 3:05.06 | |
| Team Sprint | Michelle de Jong Femke Beuling Jutta Leerdam | 1:28.75 | Kim Min-jo Park Chae-eun Park Ji-woo | 1:29.05 | Natalia Jabrzyk Karolina Gąsecka Karolina Bosiek | 1:29.46 | |
| Overall Classification | 153.776 WR | 154.418 | 157.306 |