| Three Corner Cay | Three Crosses | Three Days Grace |
| Three days grace | Three Days grace | Three Decades of Vocal Music |
| Three Dog Night | Three Dollar Bill Y'All | Three Doors Down |
| Three Fathoms Cove | Three Forks | Three Forks, Montana |
| Three Friends | Three Gates | Three Gorges |
| Three Gorges Dam | Three Hearts | Three Hills |
| Three Hills (ort) | Three Hummock Island | Three Imaginary Boys |
| Three Islands National Park | Three Kings | Three Kings Cove |
| Three Lakes | Three Lakes Ridge | Three Lakes Valley |
| Three Lakes Valley (dal i Antarktis) | Three Lakes, Florida | Three Laws of Robotics |
| Three Legged Cross | Three Little Birds | Three Little Pigs, Antarktis |
| Three little pigs, Antarktis | Three Man Army | Three Man Peak |
| Three Men and a Comic Book | Three Mile Island | Three Mile Island kärnkraftverk |
| Three Minutes to Earth | Three Moon | Three musketeers |
| Three Musketeers Hill | Three Nunataks | Three Oaks |
| Three of a kind | Three on a Meathook | Three Point Island |
| Three Points, Arizona | Three Rings Design | Three Rivers |
| Three Rivers (distrikt) | Three Rivers (olika betydelser) | Three Rivers (vattendrag) |
| Three Rivers, Michigan | Three Rock Mountain | Three Sails |
| Three Shadows Photography Art Centre | Three Sides Live | Three Sisters |
| Three Sisters (Alberta) | Three Sisters (bergstopp i Antarktis) | Three Sisters (bergstopp i Kenya) |
| Three Sisters (bergstoppar i Kanada, British Columbia, lat 49,58, long -115,10) | Three Sisters (olika betydelser) | Three Sisters Cone |
| Three Sisters Cones | Three Sisters Lakes Park | Three Sisters Point |
| Three Sisters Range | Three Sisters Range (berg i Kanada) | Three Sisters, Alberta |
| Three Sisters, Antarktis | Three Sisters, British Columbia | Three Six Mafia |
| Three Slice Nunatak | Three Springs | Three Springs (ort i Australien, Western Australia, Three Springs) |
| Three Springs (region) | Three Springs Shire | Three Stooges |
| Three strikes-lagar | Three Studies of Lucian Freud | Three to Tango |
| Three Towns | Three towns | Three Valley Lake |
| Three Women | Three Wooden Crosses | Three World Financial Center |
| Three World Trade Center | Three's Company | Three-Five-Zero-Zero |
| Three-five-zero-zero | Three-state | Threecliff Bay |
| Threekingham | Threekingham (ort) | Threekingham (parish) |
| Threemilestone | Threenarrows Lake | Threepoint Mountain |
| Threes | Threipmuir Reservoir | Threlkeld |
| Threlkeld (ort) | Threlkeld (parish) | Threlkeldia |
| Threlkeldia proceriflora | Thremma | Thremma anomalum |
| Thremma deceptiva | Thremma fontium | Thremma gallicum |
| Thremma martynovi | Thremma sardoum | Thremma tellae |
| Threnberg | Threneta | Threneta pellophanes |
| Threnetes | Threnetes leucurus | Threnetes niger |
| Threnetes ruckeri | Threnetica lacrymans | Threnia |
| Threnia acanthura | Threnia carbonaria | Threnia kelleri |
| Threnia longipennis | Threnia lugens | Threnia microtelus |
| Threnia rabelloi | Threnosia | Threnosia adrasta |
| Threnosia agraphes | Threnosia heminephes | Threnosia hypopolia |
| Threnosia myochroa | Threpterius chalceus | Threpterius maculosus |
| Thresh | Threshfield | Threshold |
| Threshold (musikalbum av Hammerfall) | Threshold (musikalbum) | Threshold (olika betydelser) |
| Threshold Nunatak | Thresiaella | Thresiaella bicarinata |
| Thresiaella caudata | Threskiornis | Threskiornis aethiopicus |
| Threskiornis bernieri | Threskiornis melanocephalus | Threskiornis molucca |
| Threskiornis moluccus | Threskiornis solitarius | Threskiornis spinicollis |
| Threskiornithidae | Thressa | Thressa aeneiventris |
| Thressa anderssoni | Thressa apicalis | Thressa atricornis |
| Thressa beckeri | Thressa cyanescens | Thressa flavior |
| Thressa gigas | Thressa guizhouensis | Thressa incongruens |
| Thressa laticornis | Thressa maculata | Thressa polita |
| Thressa punctifera | Thressa signifera | Thressa spuria |
| Threticus | Threticus aenigmaticus | Threticus arvernicus |
| Threticus balkaneoalpinus | Threticus biscolor | Threticus compar |
| Threticus dubitatus | Threticus fissiceps | Threticus helleis |
| Threticus incurvus | Threticus ingrami | Threticus insularis |
| Threticus irroratus | Threticus jonesi | Threticus lucifugus |
| Threticus nanus | Threticus negrobovi | Threticus optabilis |
| Threticus petrosus | Threticus philpotti | Threticus pyrenaicus |
| Threticus saetheri | Threticus silvaticus | Threticus tanganicus |
| Threticus tortuosus | Threticus tschutschuricus | Threticus unimaculatus |
| Threxton | Thria | Thria decaryi |
| Thria distincta | Thria fugitiva | Thria grandis |
| Thria malgassica | Thria opposita | Thria robusta |
| Thria senaarensis | Thria similata | Thria terrigena |
| Thriambeutes | Thriambeutes flaviventris | Thriambeutes fuscus |
| Thriambeutes mesembrinoides | Thriambeutes nigripennis | Thriambeutes singularis |
| Thriambeutes v-albus | Thriambeutis | Thriambeutis coryphaea |
| Thriambus | Thriambus acca | Thriambus bridwelli |
| Thriambus ephora | Thriambus helias | Thriambus iaspis |
| Thriambus idmon | Thriambus levis | Thriambus nicias |
| Thriambus obscurella | Thriambus panisca | Thriambus pondolandensis |
| Thriambus reynaudi | Thriambus straminea | Thriambus strenna |
| Thriambus taiensis | Thriambus vegetata | Thrianta |
| Thrice | Thrichocalydon | Thrichocalydon havrylenkoi |
| Thrichoferus griseus | Thrichomycterus macraei | Thrichomys |
| Thrichomys apereoides | Thrichomys inermis | Thricolema |
| Thricolema anomala | Thricolepis | Thriconotus |
| Thricops | Thricops aculeipes | Thricops aduncus |
| Thricops albibasalis | Thricops angelorum | Thricops bakusanus |
| Thricops beckeri | Thricops bukowskii | Thricops calcaratus |
| Thricops coquilletti | Thricops culminum | Thricops cunctans |
| Thricops dianae | Thricops diannae | Thricops diaphanus |
| Thricops fimbriatus | Thricops flavidus | Thricops foveolatus |
| Thricops furcatus | Thricops genarum | Thricops gregori |
| Thricops himalayensis | Thricops hirtulus | Thricops ineptus |
| Thricops innocuus | Thricops jiyaoi | Thricops lividiventris |
| Thricops longipes | Thricops nepalensis | Thricops nigriabdominalis |
| Thricops nigrifrons | Thricops nigritellus | Thricops plumbeus |
| Thricops ponti | Thricops rostratus | Thricops rufisquamus |
| Thricops semicinereus | Thricops separ | Thricops septentrionalis |
| Thricops simplex | Thricops spiniger | Thricops sudeticus |
| Thricops tarsalis | Thricops tatricus | Thricops thudamensis |
