| Rotala fluitans | Rotala fontinalis | Rotala gossweileri |
| Rotala hexandra | Rotala indica | Rotala lucalensis |
| Rotala mexicana | Rotala myriophylloides | Rotala nummularia |
| Rotala pusilla | Rotala ramosior | Rotala rotundifolia |
| Rotala serpiculoides | Rotala smithii | Rotala taiwaniana |
| Rotala tenella | Rotala thymoides | Rotala wallichii |
| Rotala welwitschii | Rotalier | Rotan, Texas |
| Rotanak Mondol | Rotangy | Rotaovula |
| Rotaovula hirohitoi | Rotaovula septemmacula | Rotava |
| Rotavirus | Rote | Rote (đảo) |
| Roteiro | Roteiro, Alagoas | Rotella |
| Rotello | Rotenboden | Rotenburg (huyện) |
| Rotenon | Roth (huyện) | Roth an der Our |
| Roth bei Nürnberg | Roth bei Prüm | Roth Steyr M1907 |
| Roth, Altenkirchen | Roth, Bad Kreuznach | Roth, Rhein-Hunsrück |
| Roth, Rhein-Lahn | Roth-Krnka M.7 | Roth-Steyr M1907 |
| Rothau | Rothbach | Rotheca |
| Rotheca alata | Rotheca amplifolia | Rotheca aurantiaca |
| Rotheca bukobensis | Rotheca caerulea | Rotheca calundensis |
| Rotheca commiphoroides | Rotheca cuneiformis | Rotheca cyanea |
| Rotheca farinosa | Rotheca hirsuta | Rotheca kissakensis |
| Rotheca louwalbertsii | Rotheca luembensis | Rotheca makanjana |
| Rotheca mendesii | Rotheca myricoides | Rotheca pilosa |
| Rotheca prittwitzii | Rotheca quadrangulata | Rotheca reflexa |
| Rotheca rupicola | Rotheca sansibarensis | Rotheca serrata |
| Rotheca suffruticosa | Rotheca taborensis | Rotheca tanneri |
| Rotheca teaguei | Rotheca verdcourtii | Rotheca violacea |
| Rotheca wildii | Rothemühl | Rothenbach |
| Rothenburg ob der Tauber | Rothenburg, Saale | Rothenburg/Oberlausitz |
| Rothenklempenow | Rothenstein | Rothera |
| Rotherens | Rothes F.C. | Rothia |
| Rothia (chi động vật) | Rothia (chi bướm đêm) | Rothia (chi thực vật) |
| Rothia agrius | Rothia alluandi | Rothia arrosa |
| Rothia caecata | Rothia cruenta | Rothia dayremi |
| Rothia distigma | Rothia divisa | Rothia epiera |
| Rothia epipales | Rothia fianarantsoa | Rothia hampsoni |
| Rothia hirsuta | Rothia holli | Rothia hypopyrrha |
| Rothia indica | Rothia lasti | Rothia lutescens |
| Rothia martha | Rothia metagrius | Rothia micropales |
| Rothia nigrescens | Rothia nigrifimbriata | Rothia pales |
| Rothia panganica | Rothia pedasus | Rothia powelli |
| Rothia rhaeo | Rothia rhaeoides | Rothia simplex |
| Rothia simyra | Rothia sinefasciata | Rothia tenuis |
| Rothia tranquilla | Rothia tricolora | Rothia turlini |
| Rothia vaovao | Rothia viossati | Rothia virguncula |
| Rothia watersi | Rothia westwoodi | Rothia zea |
| Rothmaleria | Rothmaleria granatensis | Rothmannia |
| Rothmannia annae | Rothmannia attopevensis | Rothmannia capensis |
| Rothmannia daweishanensis | Rothmannia ebamutensis | Rothmannia engleriana |
| Rothmannia eucodon | Rothmannia exaltata | Rothmannia fischeri |
| Rothmannia fischeri moramballae | Rothmannia globosa | Rothmannia hispida |
| Rothmannia jollyana | Rothmannia kampucheana | Rothmannia keithii |
| Rothmannia kuchingensis | Rothmannia lateriflora | Rothmannia libisa |
| Rothmannia liebrechtsiana | Rothmannia longiflora | Rothmannia lujae |
| Rothmannia macrocarpa | Rothmannia macromera | Rothmannia macrophylla |
| Rothmannia macrosiphon | Rothmannia malayana | Rothmannia manganjae |
| Rothmannia mayumbensis | Rothmannia munsae | Rothmannia munsae megalostigma |
| Rothmannia octomera | Rothmannia pulcherrima | Rothmannia ravae |
| Rothmannia schoemanii | Rothmannia sootepensis | Rothmannia talbotii |
| Rothmannia thailandica | Rothmannia uranthera | Rothmannia urcelliformis |
| Rothmannia venalis | Rothmannia vidalii | Rothmannia vietnamensis |
| Rothmannia whitfieldii | Rothmannia wittii | Rothneyia annulicornis |
| Rothneyia fortispina | Rothneyia insularis | Rothneyia sinica |
| Rothneyia tibetensis | Rothois | Rothonay |
| Rothrist | Rothsay, Minnesota | Rothschild |
| Rothschild, WI | Rothschild, Wisconsin | Rothschildia |
| Rothschildia jacobaeae | Rothschildia maurus | Rothselberg |
| Rothus | Rothus auratus | Rothus purpurissatus |
| Rothus vittatus | Rothwell Corinthians F.C. | Roti |
| Rotifera | Rotoa | Rotoa distincta |
| Rotondi | Rotor | Rotorcraft XR-11 |
| Rotorua | Rots | Rotselaar |
| Rott am Inn | Rott, Altenkirchen | Rott, Bas-Rhin |
| Rott, Landsberg | Rotta, Wittenberg | Rottach-Egern |
| Rottal-Inn | Rottboellia | Rottboellia cochinchinensis |
| Rottboellia coelorachis | Rottboellia goalparensis | Rottboellia laevispica |
| Rottboellia paradoxa | Rottboellia purpurascens | Rottelsdorf |
| Rottelsheim | Rotten Tomatoes | Rottenbach |
| Rottenbach, Grieskirchen | Rottenbuch | Rottenburg an der Laaber |
| Rottendorf | Rottenschwil | Rotterdam |
| Rotterdam School of Management, Erasmus University | Rotterode | Rotthalmünster |
| Rottier | Rottleben | Rottleberode |
| Rottleria | Rottleria javanica | Rottmersleben |
| Rottweil (huyện) | Rottweiler | Rotula aquatica |
| Rotuma | Rotunda | Rotunda, România |
| Rotundrela | Rotundrela orbiculata | Rotundrela rotunda |
| Roturas | Rou-Marson | Rouached |
| Rouairoux | Rouans | Rouède |
| Rouécourt | Roubaix | Roubanina |
| Roubia | Roubidoux, Quận Pulaski, Missouri | Roubidoux, Quận Texas, Missouri |
| Roubion | Roucamps | Roucheria |
| Roucheria calophylla | Roucheria columbiana | Roucheria laxiflora |
| Roucheria schomburgkii | Roucheria sipapoensis | Rouchovany |
| Roucourt, Nord | Roucy | Roudná |
| Roudné | Roudnice | Roudnice nad Labem |
| Roudno | Roudouallec | Rouellé |
| Rouelles | Rouen | Rouen (huyện) |
| Rouen (quận) | Rouessé-Fontaine | Rouessé-Vassé |
| Rouet | Rouez | Rouffach |
| Rouffange | Rouffiac, Cantal | Rouffiac, Charente |
