2021 IIHF World Women's U18 Championship

The 2021 IIHF Women's U18 World Championship was scheduled to be the 14th Women's U18 World Championship in ice hockey.

On 17 September 2020, all tournaments were cancelled by the IIHF due to the COVID-19 pandemic.

Preliminary round
All times are local (UTC+1).

Group A
The tournament would have been held in Győr, Hungary from 10 to 16 January 2021.
 * – Promoted from Division I B
 * – Relegated from Top Division
 * – Promoted from Division I B
 * – Relegated from Top Division
 * – Promoted from Division I B
 * – Relegated from Top Division

Group B
The tournament would have been held in Radenthein, Austria from 10 to 16 January 2021.
 * – Promoted from Division II A
 * – Relegated from Division I A
 * – Promoted from Division II A
 * – Relegated from Division I A

Group A
The tournament would have been held in Dumfries, Great Britain from 19 to 22 January 2021.
 * – Relegated from Division I B
 * – Promoted from Division II B
 * – Promoted from Division II B

Group B
The tournament would have been held in İzmit, Turkey from 28 to 31 January 2021.
 * – Relegated from Division II A