 Ashton Baumann | Aquatics |
 Jackie Baumann | Athletiek |
 Anna Holm Baumeister | Athletiek |
 Iga Baumgart | Athletiek |
 Simona Baumrtová | Aquatics |
 Roberto Bautista | Tennis |
 Louise Bawden | Volleybal |
 Yesui Bayar | Aquatics |
 Gabriela Bayardo | Boogschieten |
| Munkhzaya Bayartsogt | Athletiek |
 Martha Bayona | Wielrennen |
 Özge Bayrak | Badminton |
 Rovshan Bayramov | Worstelen |
 Nikolay Bayryakov | Worstelen |
 Hamdan Bayusuf | Aquatics |
 Sandro Bazadze | Schermen |
 Nadezhda Bazhina | Aquatics |
 Lorène Bazolo | Athletiek |
| Marie-Eve Beauchemin-Nadeau | Gewichtheffen |
| Catherine Beauchemin-Pinard | Judo |
 Cassandre Beaugrand | Triatlon |
 Jack Beaumont | Roeien |
| Maxime Beaumont | Canoe/Kayak |
| Josh Beaver | Aquatics |
| Leonie Beck | Aquatics |