2018 World Junior Ice Hockey Championships
| Tournament details | |
|---|---|
| Host country | United States |
| Venue(s) | KeyBank Center, HarborCenter, New Era Field (in 2 host cities) |
| Dates | December 26, 2017 – January 5, 2018 |
| Teams | 10 |
| Final positions | |
| Champions | Canada (17th title) |
| Runners-up | Sweden |
| Third place | United States |
| Fourth place | Czech Republic |
| Tournament statistics | |
| Games played | 30 |
| Goals scored | 216 (7.2 per game) |
| Attendance | 211,210 (7,040 per game) |
| Scoring leader(s) | Casey Mittelstadt (11 points) |
| Awards | |
| MVP | Casey Mittelstadt |
The 2018 World Junior Ice Hockey Championship was the 42nd edition of the Ice Hockey World Junior Championship, and was hosted by the city of Buffalo, New York, at KeyBank Center and HarborCenter. It opened on December 26, 2017 and closed with the gold medal game on January 5, 2018. It was the sixth time that the United States has hosted the WJIHC, and the second time that Buffalo has done so, previously hosting in 2011.
A preliminary round game between Canada and the United States was played outdoors at New Era Field in nearby Orchard Park, New York on December 29, 2017. It was the second outdoor game held at any top-level IIHF world championship, the first being the opening game of the 2010 IIHF World Championship, and the first one held at a junior level.