The 2021 Just World Indoor Bowls Championship took place at Potters Leisure Resort, Hopton-on-Sea, Great Yarmouth, England, from 8–24 January 2021.

[4] Late changes had to be made to the draw, with world number one and 2nd seed Nick Brett unable to participate because he broke his arm following an accident playing golf.

[5] Scottish 11th seed Darren Burnett also pulled out through injury, while Colin Walker, Ian Honnor and Caroline Brown withdrew for personal reasons.

In the Men's Singles, the quarter-final match between Perry Martin and Wayne Willgress was declared void following a positive COVID-19 test for both players.

[7][8] In the Women's Singles, Laura Daniels claimed her second title success by beating Katherine Rednall in a repeat of the 2015 final in which the Welshwoman also won.