| Rettel | Rettenbach am Auerberg | Rettenbach, Cham |
| Rettenbach, Günzburg | Rettenberg | Rettenegg |
| Retterath | Rettersen | Rettershain |
| Rettert | Retuerta | Retuerta del Bullaque |
| Return of Sabata | Return of the Jedi | Return to House on Haunted Hill |
| Retusia | Rety | Retzau |
| Retzbach | Retznei | Retzow |
| Retzwiller | Reußenköge | Reudelsterz |
| Reuden | Reugney | Reugny, Allier |
| Reugny, Indre-et-Loire | Reuil | Reuil-en-Brie |
| Reuil-sur-Brêche | Reuilly, Eure | Reuilly, Indre |
| Reuilly-Sauvigny | Reulle-Vergy | Reumont |
| Reunion | Reunionorhynchites viridissimus | Reunited Worlds |
| Reupzig | Reurieth | Reus |
| Reusel-De Mierden | Reut | Reutealis |
| Reutealis trisperma | Reutenbourg | Reuters |
| Reuth bei Erbendorf | Reuth, Vogtland | Reuth, Vulkaneifel |
| Reutigen | Reutlingen | Reutlingen (huyện) |
| Reutov | Reutte (huyện) | Reuven Rivlin |
| Reuves | Reuville | Reux |
| Revò | Revda | Revealed Recordings |
| Revel (Haute-Garonne) | Revel, Haute-Garonne | Revel, Isère |
| Revel-Tourdan | Revelganj | Revelieria genei |
| Revelles | Revellinos | Revello |
| Revenga de Campos | Revenge (lớp thiết giáp hạm) | Revens |
| Reventin-Vaugris | Revercourt | Reverdinia |
| Reverdinus | Revere | Revere, Massachusetts |
| Revere, Minnesota | Reverse Address Resolution Protocol | Reverse Polish notation |
| Reverse proxy | Reversi | Reversopelma |
| Reversopelma petersi | Revertuncaria | Revest-des-Brousses |
| Revest-du-Bion | Revest-les-Roches | Revest-Saint-Martin |
| Reviers | Reviga | Revigliasco d'Asti |
| Revigny | Revigny-sur-Ornain | Revilla de Collazos |
| Revilla del Campo | Revilla Vallejera | Revillarruz |
| Revin | Revin (tổng) | Revine Lago |
| Revival (album của Selena Gomez) | Revival (album) | Revival Tour |
| Revlon | Revnak, Bozüyük | Revolution (bài hát) |
| Revolution 9 | Revolver | Revolver (định hướng) |
| Revolver (bài hát) | Revonnas | Revueltoraptor |
| Revueltosaurus | Revwattsia fragilis | Rewa |
| Rewa (huyện) | Rewa (tỉnh) | Rewa F.C. |
| Rewari | Rewari (huyện) | Rewari (Rural) |
| Rewey, Wisconsin | Rewrite | Rewrite (visual novel) |
| Rewrite engine | Rewrite Harvest festa! | Rewrite URL |
| Rex - Chú chó thám tử | Rex Tillerson | Rexa lordina |
| Rexa raddai | Rexburg, Idaho | Rexford, Kansas |
| Rexine, Quận Kidder, Bắc Dakota | Rexingen, Bas-Rhin | Rexpoëde |
| Rey (Chiến tranh giữa các vì sao) | Rey (Star Wars) | Rey Mysterio |
| Rey Valera | Reyemia nemesioides | Reyero |
| Reyersviller | Reyes Etla | Reyesia cactorum |
| Reyesia chilensis | Reyesia juniperoides | Reyesia parviflora |
| Reygade | Reyhanlı | Reyhanlı, Onikişubat |
| Reykjavík | Reykjavik | Reymondia horei |
| Reymondia minor | Reymondia pyramidalis | Reymondia tanganyicensis |
| Reynaudia | Reynaudia filiformis | Reynès |
| Reynel | Reyniès | Reynir Sandgerði |
| Reyno, Arkansas | Reynolds, Illinois | Reynolds, Quận Lee, Illinois |
| Reynoldsburg, Ohio | Reynoldsia | Reynoldsia grayana |
| Reynoldsia lanutoensis | Reynoldsia marchionensis | Reynoldsia pleiosperma |
| Reynoldsia sandwicensis | Reynoldsia tahitensis | Reynoldsia tauensis |
| Reynoldsia verrucosa | Reynoldsiella | Reynoldsiella parallela |
| Reynoldsville, Pennsylvania | Reynosa | Reynoutria japonica |
| Reynoutria spaethii | Reynoutria weyrichii | Reyrevignes |
| Reyrieux | Reyrieux (tổng) | Reyssouze |
| Reyvroz | Reza Pahlavi của Iran | Reza Shah |
| Reza Shah Pahlavi | Rezay | Rezé |
| Rezh | Rezhevsky (huyện) | Rezi |
| Rezmondo | Reznos | Rezonville |
| Rezza | Rezzago | Rezzato |
| Rezzo | Rezzoaglio | RF-101 |
| RF-101 Voodoo | RF-61 Reporter | RF-61C Reporter |
| RF-84F Thunderflash | RF-86 Sabre | RF-9 Cougar |
| RFA | RFC | RFC (định hướng) |
| RFE/RL | RFEF | RFI |
| RFID | RFK | RFLP |
| RG Veda | RG-42 | RG-6 |
| RGB | RGD-33 | RGP-40 (súng phóng lựu) |
| RGS-50M | Rhabdadenia | Rhabdadenia biflora |
| Rhabdadenia macrostoma | Rhabdadenia pohlii | Rhabdadenia ragonesei |
| Rhabdalestes leleupi | Rhabdalestes tangensis | Rhabdanaspis bicincta |
| Rhabdatomis cora | Rhabdatomis coroides | Rhabdatomis dognini |
| Rhabdatomis draudti | Rhabdatomis extensa | Rhabdatomis fasseli |
| Rhabdatomis knabi | Rhabdatomis laudamia | Rhabdatomis mandana |
| Rhabdatomis melinda | Rhabdatomis peruviana | Rhabdatomis pueblae |
| Rhabdatomis pusa | Rhabdatomis zaba | Rhabditida |
| Rhabditidae | Rhabdocaulon | Rhabdocaulon coccineum |
| Rhabdocaulon denudatum | Rhabdocaulon erythrostachys | Rhabdocaulon gracile |
| Rhabdocaulon lavanduloides | Rhabdocaulon stenodontum | Rhabdocaulon strictum |
| Rhabdocheirus incertus | Rhabdoclytus acutivittis | Rhabdoclytus alternans |
| Rhabdocosma aglaophanes | Rhabdocosma dolini | Rhabdodendraceae |
| Rhabdodon | Rhabdodontium | Rhabdodontium buftonii |
| Rhabdogaster atropalpus | Rhabdogaster bicolor | Rhabdogaster charma |
| Rhabdogaster cinerascens | Rhabdogaster cornuta | Rhabdogaster cuthbertsoni |
| Rhabdogaster eremia | Rhabdogaster etheira | Rhabdogaster flavidus |
| Rhabdogaster glabra | Rhabdogaster gracilis | Rhabdogaster kalyptos |
| Rhabdogaster karoo | Rhabdogaster kosmos | Rhabdogaster lindneri |
| Rhabdogaster maculipennis | Rhabdogaster major | Rhabdogaster melas |
| Rhabdogaster nitida | Rhabdogaster nuda | Rhabdogaster nyx |
| Rhabdogaster oldroydi | Rhabdogaster oresbios | Rhabdogaster oribi |
| Rhabdogaster pedion | Rhabdogaster pellos | Rhabdogaster poa |
