2021 AIBA Youth World Boxing Championships

The 2021 AIBA Youth World Boxing Championships (21st) were held in Kielce, Poland, from 13 to 23 April 2021. The competition was held under the supervision of AIBA, the world's governing body for amateur boxing, and was open to boxers born in 2002 and 2003. It was the third time in the tournament's history that men and women have fought in the same championship. India topped the medal table with eight gold and three bronze medals.

Schedule
{{legend|#15DB8F|Preliminaries}} {{legend|#1DD8DE|Quarterfinals}} {{legend|#C6A6F5|Semifinals}} {{legend|#DBFAA5|Final}}

Participating nations
A total of 414 competitors from 52 nations (32 Europe, 11 Asia, 7 Americas, 2 Africa) participated. • 🇦🇲 (11)

• 🇦🇿 (9)

• 🇧🇾 (10)

• 🇧🇦 (2)

• 🇧🇷 (7)

• 🇧🇬 (7)

• 🇨🇴 (14)

• (6)

• 🇨🇺 (9)

• 🇨🇿 (9)

• (2)

• 🇪🇨 (4)

• 🇪🇪 (5)

• 🇸🇿 (1)

• 🇫🇮 (6)

• 🇫🇷 (5)

• 🇩🇪 (13)

• (3)

• 🇭🇺 (13)

• 🇮🇸 (1)

• 🇮🇳 (20)

• (7)

• 🇮🇱 (4)

• 🇮🇹 (15)

• 🇯🇵 (9)

• 🇯🇴 (8)

• 🇰🇿 (20)

• 🇰🇬 (9)

• (6)

• 🇱🇹 (8)

• 🇲🇽 (2)

• 🇲🇩 (11)

• (8)

• 🇲🇪 (3)

• 🇲🇦 (9)

• (2)

• (2)

• 🇲🇰 (1)

• 🇵🇱 (20)

• 🇷🇴 (12)

• 🇷🇺 (20)

• (2)

• 🇷🇸 (4)

• 🇸🇰 (4)

• (1)

• 🇪🇸 (9)

• 🇹🇭 (7)

• 🇹🇷 (12)

• 🇺🇦 (19)

• (2)

• 🇺🇿 (18)

• 🇻🇪 (3)