| giant ground cherry | Kapstachelbeere |
| giant group | Riesenkonzern |
| Giant grouper | Riesenzackenbarsch |
| giant hairy scorpion | Grosser Texas-Skorpion |
| Giant Hogweed | Riesenbärenklau |
| giant honey bee | Riesenhonigbiene |
| giant honey-bee | Riesenhonigbiene |
| giant honeybee | Riesenhonigbiene |
| giant horsetail | Riesenschachtelhalm |
| giant house spider | Große Winkelspinne |
| Giant Hummingbird | Riesenkolibri |
| Giant hutia | Riesenhutias |
| giant hygro | Riesenwasserfreund |
| giant hypertrophic gastritis | Gastritis hypertrophica gigantea |
| giant ibis | Riesenibis |
| Giant impact hypothesis | Entstehung des Mondes |
| Giant impact theory | Entstehung des Mondes |
| giant Indian silkworm | Atlasspinner |
| Giant isopod | Riesenasseln |
| giant jewel beetle | Riesenprachtkäfer |
| giant kettle | Erosionstopf |
| giant kingbird | Kubatyrann |
| giant kingfisher | Riesenfischer |
| giant lacewing | Bachhaft |
| giant laughing thrush | Riesenhäherling |
| giant leap | Riesensprung |
| giant lilies | Riesenlilien |
| giant looper | Grosser Augenspanner |
| giant looper moth | Grosser Augenspanner |
| giant Madagascar coucal | Riesencoua |
| Giant magnetoresistance | GMR-Effekt |
| giant magnetoresistance, GMR | Riesenmagnetowiderstand |
| Giant Manufacturing | Giant |
| giant molecular cloud , GMC | Riesenmolekülwolke |
| Giant Monster | Rasputin - Der Wüstling von Petersburg |
| giant montbretia | Masons Montbretie |
| giant mottled eel | Indopazifischer Aal |
| Giant Mountains | Riesengebirge |
| Giant mouse lemur | Riesenmausmakis |
| Giant naked-tailed rat | Mosaikschwanz-Riesenratten |
| giant nuthatch | Riesenkleiber |
| giant oceanic manta ray | Riesenmanta |
| giant octopus | Riesenkrake |
| giant octopuses | Riesenkraken |
| Giant of the 20th Century | Ice Man |
| Giant order | Kolossalordnung |
| Giant Otter | Riesenotter |
| Giant Otter Shrew | Große Otterspitzmaus |
| Giant Ox Heart tomato | Ochsenherztomate |
| Giant Ox Heart tomatos | Ochsenherztomaten |
| Giant Panda | Großer Panda |
| giant peach | Riesenpfirsich |
| giant peacock moth | Großes Nachtpfauenauge |
| giant pelican flower | Große Osterluzei |
| giant periwinkle | Südafrikanische Turbanschnecke |
| giant petrel | Riesensturmvogel |
| giant pitta | Riesenpitta |
| giant planet | gigantischer Planet |
| giant pocket gopher | Hamsterratte |
| Giant pouched rat | Riesenhamsterratten |
| giant powder | Dynamit |
| giant puffball | Riesenbovist |
| giant pulse laser | Riesenimpulslaser |
| giant rams-horn | Paradiesschnecke |
| giant rams-horn snail | Brasilianische Streifenschnecke |
| giant ramshorn | Brasilianische Streifenschnecke |
| giant ramshorn snail | Brasilianische Streifenschnecke |
