2020 Zomer Olympische Spelen - Atleten
| Atleet | Sport |
|---|---|
 Eugenia Bujak | Wielrennen |
 Vladyslav Bukhov | Aquatics |
 Konrad Bukowiecki | Athletiek |
 Alyssa Bull | Canoe/Kayak |
| Tyson Bull | Gymnastiek |
| Josephine Bulmer | Canoe/Kayak |
 Song Bum-Keun | |
 Remona Burchell | Athletiek |
| Mikolaj Burda | Roeien |
 Federico Burdisso | Aquatics |
 Alex Burger | Zeilen |
 Guillaume Burger | Canoe/Kayak |
 Adam Burgess | Canoe/Kayak |
 Alexandra Burghardt | Athletiek |
| Samuele Burgo | Canoe/Kayak |
 Kata Burian | Aquatics |
 Buriel K H | |
| Elena Burkard | Athletiek |
 Mario Burke | Athletiek |
| Hannah Burkhill | Aquatics |
 Quanesha Burks | Athletiek |
 Peter Burling | Zeilen |
| Anna Burnet | Zeilen |
 Taymir Burnet | Athletiek |
 Derek Burnett | Schieten |