The 2012 IIHF U18 World Championship Division I was two international under-18 ice hockey tournaments organised by the International Ice Hockey Federation. In 2012, a new format was introduced to the IIHF World U18 Championships, therefore Division I A and Division I B now represent the second and the third tier of the IIHF World U18 Championships.
The Division I A tournament was played in Pieà ¡à ¥any, Slovakia, from 11 to 17 April 2012.
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<small>All times are local. (Central European Summer Time â UTC+2)</small>
The Division I B tournament was played in Székesfehérvár, Hungary, from 11 to 17 April 2012.
<section begin=Division I B/><section end=Division I B/>
<small>All times are local. (Central European Summer Time â UTC+2)</small>