| common barn owl | Gewöhnliche Schleiereule |
| common barnacle | Grosse Seepocke |
| common base | Basisschaltung |
| common base circuit | Basisschaltung |
| common base connection | Basisschaltung |
| Common basilisk | Helmbasilisk |
| common battery | Zentralbatterie |
| common bean | Gartenbohne |
| common beans | Gartenbohnen |
| common beech | Rotbuche |
| common bilberry | Blaubeere |
| common bile duct | Hauptgallengang |
| common birch | Weißbirke |
| common bird's-foot | Grosser Vogelfuss |
| common bird's-foot trefoil | Gewöhnlicher Hornklee |
| common bird's-foot-trifoil | Gewöhnlicher Hornklee |
| common birthwort | Gewöhnliche Osterluzei |
| common bistort | Drachenwurz |
| common black cricket | Steppengrille |
| common black hawk | Krabbenbussard |
| common black-hawk | Krabbenbussard |
| Common blackbird | Amsel |
| common blackjack | Zweizahn |
| common blacktip shark | Kleiner Schwarzspitzenhai |
| common bleak | Laube |
| Common Blue Damselfly | Gemeine Becherjungfer |
| common blue violet | Amerikanisches Schmetterlingsveilchen |
| Common Bluebell | Hasenglöckchen |
| common bogie for two car bodies | Görlitzer Fahrgestell |
| common bond | Zusammengehörigkeit |
| common booklouse | Totenuhr |
| common bracken | Adlerfarn |
| common bream | Brachse |
| common breams | Brachsen |
| common brimstone | Zitronenfalter |
| common bristle-bill | Rotschwanzbleda |
| common bristlebird | Braunbauch-Lackvogel |
| common bronzewing | Bronzeflügeltaube |
| common broom | Besenginster |
| common brown bear | Europäischer Braunbär |
| common brown snake | Gewöhnliche Braunnatter |
| Common Brushtail Possum | Fuchskusu |
| common Bryde's whale | Gemeiner Brydewal |
| common bugle | Kriechender Günsel |
| common bugleweed | Kriechender Günsel |
| common bugloss | Gemeine Ochsenzunge |
| Common Bulbul | Graubülbül |
| common bullfinch | Gimpel |
| common bush tanager | Finkenbuschtangare |
| common bushtit | Buschmeise |
| Common Butterbur | Gewöhnliche Pestwurz |
| common butterfly lizard | Prachtschmetterlingsagame |
| common butterwort | Gemeines Fettkraut |
| common buzzard | Mäusebussard |
| common cactus finch | Kaktusgrundfink |
| common canary | Kanarengirlitz |
| common capital stock | Stammkapital |
| common caracara | Schopfkarakara |
| common caraway | Echter Kümmel |
| common carder bee | Ackerhummel |
| common carder-bee | Ackerhummel |
