The 2017 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.
The Division II A tournament was played in Gangneung, South Korea, from 2 to 8 April 2017.
4 referees and 7 linesmen were selected for the tournament.
<section begin=Division II A/><section end=Division II A/>
<small>All times are local. (Korea Standard Time â UTC+9)</small>
The Division II B tournament was played in Belgrade, Serbia, from 13 to 19 March 2017. Australia achieved the unusual distinction of being promoted in consecutive years.
4 referees and 7 linesmen were selected for the tournament.
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<small>All times are local. (Central European Time â UTC+1)</small>