| Urbiztondo | Urby Emanuelson | Urcel |
| Urceocharis | Urceocharis edentata | Urceola |
| Urceola brachysepala | Urceola elastica | Urceola huaitingii |
| Urceola javanica | Urceola laevis | Urceola lakhimpurensis |
| Urceola latifolia | Urceola lucida | Urceola malayana |
| Urceola micrantha | Urceola minutiflora | Urceola napeensis |
| Urceola quintaretii | Urceola rosea | Urceola torulosa |
| Urceola tournieri | Urceola xylinabariopsoides | Urceolina |
| Urceolina (Amaryllidaceae) | Urceolina ayacucensis | Urceolina cuzcoensis |
| Urceolina fulva | Urceolina latifolia | Urceolina microcrater |
| Urceolina robledoana | Urceolina urceolata | Urcerey |
| Urciers | Urcuit | Urcy |
| Urda, Toledo | Urdari | Urdazubi/Urdax |
| Urdès | Urdens | Urdiain |
| Urdiales del Páramo | Urdos | Urdu |
| Urea | Urease | Urecheni |
| Urechesti, Bacău | Urechesti, Vrancea | Urechis unicinctus |
| Urediniospore | Urelytrum | Urelytrum agropyroides |
| Urelytrum annuum | Urelytrum auriculatum | Urelytrum digitatum |
| Urelytrum giganteum | Urelytrum henrardii | Urelytrum muricatum |
| Urena | Urena lobata | Urena procumbens |
| Urena repanda | Urena sinuata | Urensky (huyện) |
| Urepel | Urepione | Urepione contorta |
| Urepione quadrilineata | Urepione valloma | Urepus |
| Urepus rossi | Urera | Urera acuminata |
| Urera aurantiaca | Urera baccifera | Urera cameroonensis |
| Urera capitata | Urera caracasana | Urera elata |
| Urera henriquesii | Urera laciniata | Urera mannii |
| Urera nitida | Urera repens | Urera simplex |
| Urera sinuata | Urera thonneri | Urera trinervis |
| Urera verrucosa | Ures, Sonora | Ureshino, Saga |
| Uresiphita | Uresiphita antipodea | Uresiphita catalalis |
| Uresiphita dissipatalis | Uresiphita fusei | Uresiphita gilvata |
| Uresiphita gracilis | Uresiphita hemiclista | Uresiphita insulicola |
| Uresiphita ornithopteralis | Uresiphita polygonalis | Uresiphita prunipennis |
| Uresiphita quinquigera | Uresiphita reversalis | Uresiphita suffusalis |
| Uresiphita termoxantha | Uresiphita tricolor | Urethan |
| Urfahr-Umgebung | Urfahr-Umgebung (huyện) | Urgancı, Taşköprü |
| Urganlı, Turgutlu | Urgell (comarca) | Urgleptes abstersus |
| Urgleptes amoenulus | Urgleptes amplicollis | Urgleptes bicoloratus |
| Urgleptes bimaculatus | Urgleptes bivittatus | Urgleptes borikensis |
| Urgleptes bruchi | Urgleptes callizonus | Urgleptes cazieri |
| Urgleptes celtis | Urgleptes chamaeropsis | Urgleptes charillus |
| Urgleptes clarkei | Urgleptes clerulus | Urgleptes cobbeni |
| Urgleptes debilis | Urgleptes decens | Urgleptes delicatus |
| Urgleptes deliciolus | Urgleptes dorcadioides | Urgleptes dorotheae |
| Urgleptes duffyi | Urgleptes euprepes | Urgleptes facetus |
| Urgleptes fasciatus | Urgleptes foveatocollis | Urgleptes franciscanus |
| Urgleptes freudei | Urgleptes gahani | Urgleptes guadeloupensis |
| Urgleptes haitiensis | Urgleptes histrionella | Urgleptes humilis |
| Urgleptes hummelincki | Urgleptes inops | Urgleptes jamaicensis |
| Urgleptes kuscheli | Urgleptes laticollis | Urgleptes laxicollis |
| Urgleptes leopaulini | Urgleptes literatus | Urgleptes litoralis |
| Urgleptes maculatus | Urgleptes mancus | Urgleptes melzeri |
| Urgleptes minutissimus | Urgleptes miser | Urgleptes mixtus |
| Urgleptes multinotatus | Urgleptes mundulus | Urgleptes musculus |
| Urgleptes nanus | Urgleptes nigridorsis | Urgleptes obscurellus |
| Urgleptes ornatissimus | Urgleptes ovalis | Urgleptes ozophagus |
| Urgleptes pallidulus | Urgleptes pareuprepes | Urgleptes physoderus |
| Urgleptes pluristrigosus | Urgleptes prolixus | Urgleptes puertoricensis |
| Urgleptes puerulus | Urgleptes pusillus | Urgleptes querci |
| Urgleptes recki | Urgleptes ruficollis | Urgleptes sandersoni |
| Urgleptes signatus | Urgleptes sinuosus | Urgleptes sordidus |
| Urgleptes spinifer | Urgleptes trilineatus | Urgleptes trivittatus |
| Urgleptes tumidicollis | Urgleptes unilineatus | Urgleptes vauriearum |
| Urgleptes villiersi | Urgleptes xantho | Urgnano |
| Urgons | Urgosse | Urho |
| Urho Castrén | Urho Kekkonen | Uri |
| URI | Uri (bang) | Uri, Jammu và Kashmir |
| Uri, Sassari | Uria | Uria aalge |
| Uria aalge aalge | Uria aalge albionis | Uria aalge californica |
| Uria aalge inornata | Uria lomvia | Uria lomvia arra |
| Uria lomvia eleonorae | Uria lomvia heckeri | Uria lomvia lomvia |
| Uriangato | Urias spinosus | Uribea |
| Uribea tamarindoides | Uribia | Uric acid |
| Uricani | Uriménil | Uripao |
| Uripao albizonata | Urique | Uritsky (huyện) |
| Uriu | Uriyangqadai | Uriyangqatai |
| Urjala | Urkabustaiz | URL |
| Url | Urla | Urla, İzmir |
| Urla, Raipur | Urlati | Urmar Tanda |
| Urmarsky (huyện) | Urmatt | Urmenetea |
| Urmenetea atacamensis | Urmenis | Urmersbach |
| Urmitz | URN | Urner Alps |
| Urnero | Urnieta | Urnshausen |
| Urnula | Uroš Đerić | Uroš Celcer |
| Uroš Nenadović | Uroš Nikolić (cầu thủ bóng đá, sinh 1993) | Uroš Sinđić |
| Uroš Stamenić | Uroš Stepanović | Uroš Stojanov |
| Uroš Vidović | Uroballus | Uroballus henicurus |
| Uroballus octovittatus | Uroballus peckhami | Urobatis concentricus |
| Urobatis halleri | Urobatis jamaicensis | Urobatis maculatus |
| Urobatis marmoratus | Urobopyrus processae | Urobotrya congolana |
| Urobotrya congolana afzelii | Urobotrya floresensis | Urobotrya latisquama |
| Urobotrya longipes | Urobotrya parviflora | Urobotrya siamensis |
| Urobotrya sparsiflora | Urobotrya sparsiflora bruneelii | Urocalpe |
| Urocalpe nigriplaga | Urocarpidium albiflorum | Urocarpidium chilense |
| Urocarpidium corniculatum | Urocarpidium echinatum | Urocarpidium jacens |
| Urocarpidium leptocalyx | Urocarpidium mathewsii | Urocarpidium pentacoccum |
| Urocarpidium pentandrum | Urocarpidium sanambrosianum | Urocarpidium stipulatum |
| Urocerus gigas | Urocerus sah | Urochlaena |
