| bay woodpecker | Rotohrspecht |
| bay wren | Kastanienzaunkönig |
| bay-backed antpitta | Rotrücken-Ameisenpitta |
| bay-backed shrike | Rotschulterwürger |
| bay-breasted warbler | Braunbrustwaldsänger |
| bay-capped wren spinetail | Staffelschwanzschlüpfer |
| bay-chested warbling finch | Maronenbrust-Ammerfink |
| bay-crowned brush finch | Rostkappen-Buschammer |
| bay-crowned brush-finch | Rostkappen-Buschammer |
| bay-crowned brushfinch | Rostkappen-Buschammer |
| bay-headed bee eater | Braunkopfspint |
| bay-headed tanager | Grüntangare |
| Bay-leaf | Lorbeer |
| bay-ringed tyrannulet | Braunzügel-Borstentyrann |
| bay-vented cotinga | Rotsteißkotinga |
| baya weaver | Bayaweber |
| Bayam | Banyan-Feige |
| bayan | Bajan |
| Bayan I | Baian |
| Bayan Nur | Bayan Nur |
| Bayan-Ölgii Province | Bajan-Ölgii-Aimag |
| Bayanhongor Province | Bajanchongor-Aimag |
| Bayankhongor | Bajanchongor |
| Bayankhongor Province | Bajanchongor-Aimag |
| Bayazid Bastami | Bayazid Bistami |
| bayberries | Gagelsträucher |
| bayberry | Gagelstrauch |
| bayberry wax | Myrtenwachs |
| Bayburt | Bayburt |
| Bayburt Province | Bayburt |
| bayed | gebellt |
| Bayelsa State | Bayelsa |
| Bayer | Bayer AG |
| Bayer designation | Bayer-Bezeichnung |
| Bayer filter | Bayer-Sensor |
| Bayer Giants Leverkusen | Bayer Giants Leverkusen |
| Bayer pattern | Bayer-Matrix |
| Bayer process | Bayer-Verfahren |
| Bayer Schering Pharma AG | Bayer Schering Pharma |
| Bayerbach | Bayerbach |
| Bayerisch Eisenstein | Bayerisch Eisenstein |
| Bayerisch Gmain | Bayerisch Gmain |
| Bayerischer Rundfunk | Bayerischer Rundfunk |
| bayerite | Bayerit |
| Bayern Hof | SpVgg Bayern Hof |
| Bayern-Rundfahrt | Bayern Rundfahrt |
| Bayernhymne | Bayernhymne |
| Bayes criterion | Bayes-Kriterium |
| Bayes factor | Bayes-Faktor |
| Bayes formulation | Bayes'sche Regel |
| Bayes information criterion | Bayes'sches Informationskriterium |
| Bayes' approximation | Bayes-Näherung |
| Bayes' decision rule | Entscheidungsregel von Bayes |
| Bayes' principle | Bayes'sche Regel |
| Bayes' rule | Bayes-Regel |
| Bayes' theorem | Bayes'sche Regel |
| Bayesian equilibrium | Bayes'sches Gleichgewicht |
| Bayesian formulation | Bayes'sche Formel |
| Bayesian inference | Bayessche Statistik |
| Bayesian network | Bayessches Netz |
| Bayesian probability | Bayesscher Wahrscheinlichkeitsbegriff |
| Bayesian spam filtering | Bayesscher Filter |
| Bayeux | Bayeux |
| Bayeux Tapestry | Teppich von Bayeux |
| Bayezid II Mosque | Beyazıt-Moschee |
| baying | Bellen |
| Bayingolin Mongol Autonomous Prefecture | Bayingolin |
| Baykalsk | Baikalsk |
| bayldonite | Bayldonit |
| Baylen | Bailén |
| Bayliss effect | Bayliss-Effekt |
| Bayliss myogenic response | myogene Autoregulation |
| Baylor County | Baylor County |
| Baylor University | Baylor University |
| Bayly Glacier | Bayly-Gletscher |
| Baynnur | Bayan Nur |
| Bayon | Bayon |
| bayonet | Bajonett |
