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.
Source: IIHF Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) head-to-head number of goals scored; 5) result against closest best-ranked team outside tied teams; 6) result against second-best ranked team outside tied teams; 7) seeding before tournament. (H) Host
Source: IIHF Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) head-to-head number of goals scored; 5) result against closest best-ranked team outside tied teams; 6) result against second-best ranked team outside tied teams; 7) seeding before tournament. (H) Host