| English | German |
| ruby barb | Purpurkopfbarbe Barbus nigrofasciatus |
| Ruby-cheeked Sunbird | Rubinwangen-Nektarvogel |
| ruby coloured | weinrot |
| Ruby-crowned Tanager | Krontangare |
| ruby glass | Rubinglas |
| ruby-nosed tetra | Rotmaulsalmler Hemigrammus rhodostomus |
| ruby pin | Hebelstein |
| ruby silver ore | Rotgültigerz |
| Ruby-throated Hummingbird | Rubinkolibri |
| ruby-throated hummingbird Archilochus colubris | Rubinkehlkolibri |
| ruby tiger moth, Phragmatobia fuliginosa | Rostbär Falter |
| Ruby-Topaz Hummingbird | Moskitokolibri |