The 2023 IIHF U18 World Championship Division II were 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 Belgrade, Serbia, from 9 to 15 April 2023.
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The Division II B tournament was played in Sofia, Bulgaria, from 27 March to 2 April 2023.
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<small>All times are local (UTC+2).</small>