| Babacar | Bader | Badr |
| Badreddine | Bailey | Baki |
| Bakr | Balthazar | Bao |
| Baptist | Baptiste | Baran |
| Baris | Barre | Barry |
| Bart | Bart-Jan | Bartel |
| Bartosz | Bartu | Bas |
| Basiel | Basil | Basile |
| Bastiaan | Bastian | Bastien |
| Batin | Batiste | Batuhan |
| Bavo | Bayram | Bayron |
| Bazil | Beau | Bedirhan |
| Ben | Benedict | Béni |
| Benjamin | Benne | Benny |
| Benoît | Benoit | Bent |
| Bente | Benten | Benthe |
| Bentley | Benyamin | Berat |
| Berend | Berk | Berkan |
| Berkay | Berke | Bern |
| Bernard | Bernd | Berne |
| Berre | Berre | Berry |
| Bert | Berten | Berthen |
| Bertrand | Berzan | Besian |
| Besnik | Beytullah | Biagio |
| Bilal | Bilâl | Bilel |
| Bill | Billal | Billy |
| Birger | Bjarne | Bjorn |
| Björn | Blaise | Bo |
| Boaz | Bob | Bojan |
| Bono | Bora | Boran |
| Boris | Born | Borre |
| Boubacar | Boubakar | Boyd |
| BOYKE | Bradley | Brady |
| Brahim | Brain | Bram |
| Bran | Branco | Brandon |
| Branko | Brayan | Brecht |
| Brego | Bregt | Brend |
| Brenden | Brent | Brian |
| Brice | Brick | Briek |
| Brieuc | Brieux | Brikke |
| Broes | Brooklyn | Bruce |
| Bruno | Bryan | Bugra |
| Burak | Burhan | Bünyamin |
| Byron |