| Rotterdamensis | Rotterdams Dagblad | Rotterdams Filharmonisch Orkest |
| Rotterdams Nieuwsblad | Rotterdams Philharmonisch Orkest | Rotterdamsch Nieuwsblad |
| Rotterdamsch Tooneel | Rotterdamsche Bank | Rotterdamsche Droogdok Maatschappij |
| Rotterdamse Elektrische Tram | Rotterdamse Kunstkring | Rotterdamse Kunststichting |
| Rotterdamse Schie | Rotterdamse Schouwburg | Rotterdamse Tramweg Maatschappij |
| Rottermund | Rottermund family | Rotterode |
| Rotters | Rotters Golf Club | Rotters Golf Club Records |
| Rotters lymph node | Rotters lymph nodes | Rottet Studio |
| Rottevalle | Rotthalmünster | Rotthalmuenster |
| Rotthalmunster | Rotti | Rotti Largo |
| Rotti Press | Rottie | Rottier |
| Rottier (surname) | Rottiers | Rottiers Collection |
| Rottiers Collections | Rottigawad | Rottin Razkals |
| Rottin ta da Core | Rotting | Rotting (album) |
| Rotting (EP) | Rotting (Sarcófago EP) | Rotting (Sarcofago EP) |
| Rotting Christ | Rotting Civilisation | Rotting Civilization |
| Rotting flesh | Rotting flesh plant | Rotting in the Sun |
| Rotting In Vain | Rotting in Vain | Rotting in vain |
| Rotting Out | Rotting Paradise | Rotting Piñata |
| Rotting Pinata | Rotting shark | Rotting Ways to Misery |
| Rottingdean | Rottingdean Village F.C. | Rottingdean Windmill |
| Rottingen | Rottingham | Rottington |
| Rottini | Rottipehilla | Rottleben |
| Rottleberode | Rottler | Rottlera |
| Rottlera hoperiana | Rottlera indica | Rottlera multiglandulosa |
| Rottlera operiana | Rottlerin | Rottman |
| Rottman-Yang | Rottmann | Rottmanner |
| Rottmersleben | ROTTMNT | Rottmoser |
| Rottnan | Rottne | Rottner |
| Rottneros | Rottneros Park | Rottnest |
| Rottnest bee | Rottnest Channel | Rottnest Channel Swim |
| Rottnest Island | Rottnest Island Airport | Rottnest Island Authority |
| Rottnest Island pine | Rottnest Island shipwrecks | Rottnest Island tea-tree |
| Rottnest Island teatree | Rottnest Island, Western Australia | Rottnest ship graveyard |
| Rottnest snipe | Rottnest tea-tree | Rottnest teatree |
| Rottnudel | Rottofreno | Rottoli |
| Rotton | Rotton Borough (book) | Rotton Park |
| Rotton Park Reservoir | Rotton Park Road railway station | Rotton, Bill |
| Rotton, Henry | Rottone Formation | Rottoya |
| RotTR | ROTTR | Rottschäfer |
| Rottscheider Bach | Rottstein | Rottstraße 5 Theater |
| Rottstrasse 5 Theater | Rottum | Rottum (disambiguation) |
| Rottum (Friesland) | Rottum (Groningen) | Rottum (island group) |
| Rottum (island) | Rottum (river) | Rottum (Westernach) |
| Rottum, Friesland | Rottum, Groningen | Rottumeroog |
| Rottumerplaat | Rottun Recordings | Rottweil |
| Rottweil (district) | Rottweil - Tuttlingen | Rottweil – Tuttlingen |
| Rottweil district | Rottweil railway station | Rottweil station |
| Rottweil Synagogue | Rottweil Test Tower | Rottweil Witch Hunts |
| Rottweil Witch Trials | Rottweil, Baden-Württemberg | Rottweil-Lahr Black Forest Trail |
| Rottweil-Lahr Trail | Rottweil-Villingen railway | Rottweil–Lahr Black Forest Trail |
| Rottweil–Villingen railway | Rottweiler | Rottweiler (disambiguation) |
| Rottweiler (film) | Rottweiler Records | Rottweilers |
| Rottweiller | Rottwerndorf | Rottwieler |
| Rotty | Rottyful Sky | ROTU |
| Rotua Valentina Sagala | Rotuaari | Rotula |
| Rotula (disambiguation) | Rotula (echinoderm) | Rotula (genus) |
| Rotula (genus) (disambiguation) | Rotula (plant) | Rotula aquatica |
| Rotula Arithmetica | Rotula bijuga | Rotula deciesdigitatus |
| Rotularia | Rotularia bijuga | Rotuli |
| Rotuli litterarum patentium | Rotuli Parliamentorum | Rotulidae |
| Rotulo | Rotulos | Rotulus |
| Rotuma | Rotuma (disambiguation) | Rotuma (fish) |
| Rotuma (genus) | Rotuma (Rotuman Communal Constituency, Fiji) | Rotuma Airport |
| Rotuma Day | Rotuma Day, 2005 | Rotuma Group |
| Rotuma Island | Rotuma Island Airport | Rotuma lewisi |
| Rotuma myzomela | Rotuma Myzomela | Rotumah |
| Rotuman | Rotuman (disambiguation) | Rotuman Communal Constituency, Fiji |
| Rotuman dance | Rotuman forest gecko | Rotuman Islands Council |
| Rotuman language | Rotuman lesser shrikebill | Rotuman Lesser Shrikebill |
| Rotuman New Zealanders | Rotuman People | Rotuman people |
| Rotumans | Rotund | Rotund blind snake |
| Rotund boesenbergia | Rotund for Success | Rotund For Success |
| Rotund Idia Moth | Rotund idia moth | Rotund rocksnail |
| Rotunda | Rotunda (architecture) | Rotunda (Birmingham) |
| Rotunda (Blackfriars) | Rotunda (disambiguation) | Rotunda (geometry) |
| Rotunda (Lăpuș) | Rotunda (PKO) | Rotunda (script) |
| Rotunda (typeface) | Rotunda (University of Virginia) | Rotunda (Woolwich) |
| Rotunda Assembly Room | Rotunda at Balmoral Beach, Sydney | Rotunda da Boavista |
| Rotunda for the Charters of Freedom | Rotunda Glacier | Rotunda grave |
| Rotunda Hospital | Rotunda Hospital Act 1783 | Rotunda Hospital Act 1800 |
| Rotunda in Albion Place | Rotunda in Great Surrey Street | Rotunda metro station |
| Rotunda Museum | Rotunda of Illustrious Persons | Rotunda of Mosta |
| Rotunda of Saint Catherine | Rotunda of Saint Nicolas in Cieszyn | Rotunda of St Marija Assunta |
| Rotunda of St. George | Rotunda of the Charters of Freedom | Rotunda of the Finding of the Holy Cross |
| Rotunda of the National Archives | Rotunda of the Pennsylvania Railroad Station | Rotunda of the Provinces |
| Rotunda of the United States Capitol | Rotunda of the University of Virginia | Rotunda of the Winter Palace |
| Rotunda of Xewkija | Rotunda radicals | Rotunda River |
| Rotunda River (Bistriţa) | Rotunda River (Bistrița) | Rotunda River (Bistrita) |
| Rotunda River (Lapus) | Rotunda River (Lăpuş) | Rotunda River (Lăpuș) |
| Rotunda River (Olt) | Rotunda West, FL | Rotunda West, Florida |
| Rotunda Zamość | Rotunda, Aldershot | Rotunda, Birmingham |
| Rotunda, Dublin | Rotunda, Edineţ | Rotunda, Edineț |
| Rotunda, Edinet | Rotunda, Mike | Rotunda, Olt |
| Rotunda, The | Rotunda, Woolwich | Rotundabaloghia |
| Rotundanists | Rotundanthus | Rotundanthus fulvidus |
| Rotundaria | Rotundaria asperata | Rotundaria aurea |
| Rotundaria couchiana | Rotundaria houstonensis | Rotundaria infucata |
| Rotundaria pustulosa | Rotundaria refulgens | Rotundaria succissa |
| Rotundaria tuberculata | Rotundas | Rotunde |
