| 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 | Urochlaena pusilla |
| Urochloa | Urochloa brachyura | Urochloa chennaveeraina |
| Urochloa echinolaenoides | Urochloa glumaris | Urochloa longifolia |
| Urochloa mosambicensis | Urochloa oligotricha | Urochloa panicoides |
| Urochloa platyrrhachis | Urochloa rudis | Urochloa sclerochlaena |
| Urochloa semiverticillata | Urochloa setigera | Urochloa trichopodioides |
| Urochloa trichopus | Urochondra | Urochondra setulosa |
| Urochordata | Urochroa | Urochroa bougueri |
| Urochroa bougueri bougueri | Urochroa bougueri leucura | Urocissa |
| Urocissa caerulea | Urocissa erythrorhyncha | Urocissa erythrorhyncha alticola |
| Urocissa erythrorhyncha brevivexilla | Urocissa erythrorhyncha erythrorhyncha | Urocissa erythrorhyncha magnirostris |
| Urocissa erythrorhyncha occipitalis | Urocissa erythroryncha | Urocissa flavirostris |
| Urocissa flavirostris cucullata | Urocissa flavirostris flavirostris | Urocissa flavirostris robini |
| Urocissa flavirostris schaferi | Urocissa ornata | Urocissa whiteheadi |
| Urocissa whiteheadi whiteheadi | Urocissa whiteheadi xanthomelana | Urocitellus armatus |
| Urocitellus beldingi | Urocitellus brunneus | Urocitellus canus |
