This article will be listing the confirmed squads lists for badminton's 2021 Sudirman Cup. The dates of the rankings that will be stated and to also decide the ranking order for each event are based on the BWF World Ranking on 23 February 2021.
20 players are scheduled to represent China.
17 players are scheduled to represent Thailand.
17 players are scheduled to representing Finland.
12 players are scheduled to representing India.
12 players are scheduled to representing Chinese Taipei. <sup><nowiki>[1</nowiki>]</sup>
15 players are scheduled to represent South Korea.
8 players are scheduled to represent Tahiti.
16 players are scheduled to representing Germany.
20 players are scheduled to representing Indonesia.
17 players are scheduled to representing Denmark.
8 players are scheduled to representing the NBFR (National Badminton Federation of Russia).
6 players are scheduled to represent Canada.
17 players are scheduled to representing Japan.
18 players are scheduled to representing Malaysia.
13 players are scheduled to representing England.
6 players are scheduled to represent Egypt.