The 2017 IIHF World U18 Championship Division III was two international under-18 men's ice hockey tournaments organized by the International Ice Hockey Federation. The Division II A and Division II B tournaments represent the sixth and the seventh tier of the IIHF World U18 Championship.
The Division III A tournament was played in Taipei, Taiwan, from 21 to 27 March 2017.
4 referees and 7 linesmen were selected for the tournament.
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<small>All times are local. (National Standard Time â UTC+8)</small>
The Division III B tournament was played in Mexico City, Mexico, from 17 to 19 March 2017.
2 referees and 3 linesmen were selected for the tournament.
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<small>All times are local. (Central Standard Time â UTCâÂÂ6)</small>