| Tourney Name: | IIHF U18 World Championship Division II |
| Year: | 2018 |
| Country: | Estonia |
| Country2: | Croatia |
| Dates: | 1–7 April 2018 24–30 March 2018 |
| Num Teams: | 12 |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
See main article: 2018 IIHF World U18 Championships.
The 2018 IIHF U18 World Championship Division II was two international under-18 ice hockey tournaments organised by the International Ice Hockey Federation. The Division II A and Division II B tournaments represent the fourth and the fifth tier of the IIHF World U18 Championship.
| Tourney Name: | IIHF World U18 Championship Division II A |
| Year: | 2018 |
| Size: | x240px |
| Country: | Estonia |
| Dates: | 1–7 April |
| Num Teams: | 6 |
| Venues: | 1 |
| Cities: | 1 |
| Games: | 15 |
| Goals: | 113 |
| Scoring Leader: |  Damian Tyczyński |
| Points: | 12 |
| Attendance: | 5655 |
The Division II A tournament was played in Tallinn, Estonia, from 1 to 7 April 2018.[1]
| Team | Qualification | |
|---|---|---|
| placed 6th in 2017 Division I B and were relegated | ||
| hosts; placed 2nd in 2017 Division II A | ||
| placed 3rd in 2017 Division II A | ||
| placed 4th in 2017 Division II A | ||
| placed 5th in 2017 Division II A | ||
| placed 1st in 2017 Division II B and were promoted |
All times are local. (Eastern European Summer Time – UTC+3)
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Sebastian Lipiński
Dominykas Motiejūnas
Mason AldersonSource: IIHF
| Tourney Name: | IIHF World U18 Championship Division II B |
| Year: | 2018 |
| Size: | x240px |
| Country: | Croatia |
| Dates: | 24–30 March |
| Num Teams: | 6 |
| Venues: | 1 |
| Cities: | 1 |
| Games: | 15 |
| Goals: | 99 |
| Scoring Leader: |  Pablo Zaballa |
| Points: | 10 |
| Attendance: | 6816 |
The Division II B tournament was played in Zagreb, Croatia, from 24 to 30 March 2018.[2]
| Team | Qualification | |
|---|---|---|
| hosts; placed 6th in 2017 Division II A and were relegated | ||
| placed 2nd in 2017 Division II B | ||
| placed 3rd in 2017 Division II B | ||
| placed 4th in 2017 Division II B | ||
| placed 5th in 2017 Division II B | ||
| placed 1st in 2017 Division III A and were promoted |
All times are local. (24 March: Central European Time – UTC+1, from 25 March: Central European Summer Time – UTC+2)
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Aron Sarmiento
Wang JingSource: IIHF