The 2018 IIHF World U18 Championship Division III was two international under-18 ice hockey tournaments organised by the International Ice Hockey Federation. The Division III A and Division III B tournaments represent the sixth and the seventh tier of the IIHF World U18 Championship.
The Division III A tournament was played in Erzurum, Turkey, from 26 March to 1 April 2018.
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<small>All times are local. (Further-eastern European Time â UTC+3)</small>
The Division III B tournament was played in Queenstown, New Zealand, from 26 to 28 April 2018.
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<small>All times are local. (New Zealand Standard Time â UTC+12)</small>