| Yaeyama-eilanden | Yaeyama Islands |
| Yaghnobi | Yaghnobi language |
| Yagi-antenne | Yagi antenna |
| Yaguarón | Jaguarão River |
| Yahgan | Yaghan |
| Yahtzee | Yahtzee |
| Yahya Ayyash | Yahya Ayyash |
| Yak | Yak |
| Yaksha | Yaksha |
| Yakubu Aiyegbeni | Yakubu Aiyegbeni |
| Yakutia Airlines | Yakutia Airlines |
| Yakuza | Yakuza |
| Yale | Yale Romanization |
| Yale-universiteit | Yale University |
| Yalova | Yalova Province |
| yam | yam |
| Yama | Yama |
| Yamaceratops | Yamaceratops |
| Yamagata | Yamagata Prefecture |
| Yamaguchi | Yamaguchi Prefecture |
| Yamaha | Yamaha Motor Company |
| Yamaha Corporation | Yamaha Corporation |
| Yamaha V-Max | Yamaha V-Max |
| Yamal | Yamal |
| Yamal Airlines | Yamal Airlines |
| Yamanashi | Yamanashi Prefecture |
| Yamanote-lijn | Yamanote Line |
| Yamasee-oorlog | Yamasee |
| Yamato | Yamato |
| Yamato nadeshiko | Yamato Nadeshiko |
| Yamboon | Jícama |
| Yamcha | Yamucha |
| Yamile Aldama | Yamilé Aldama |
| Yamoussoukro | Yamoussoukro |
| Yamparáez | Yamparáez Province |
| yamplant | yam |
| yamswortel | yam |
| Yamuna | Yamuna |
| Yanbu | Yanbu |
| Yang Bin | Yang Bin |
| Yang Liwei | Yang Liwei |
| Yang Sze | Bolo Yeung |
| Yangchuanosaurus | Yangchuanosaurus |
| Yangshan Container Terminal | Yangshan |
| Yangzhou | Yangzhou |
| Yankee | Yankee |
| Yankee-klasse | Yankee class submarine |
| Yann Arthus-Bertrand | Yann Arthus-Bertrand |
| Yann Tiersen | Yann Tiersen |
| Yannick Dalmas | Yannick Dalmas |
| Yannick Noah | Yannick Noah |
| Yannis Anastasiou | Yannis Anastasiou |
| Yannis Rítsos | Yiannis Ritsos |
| Yanomamö | Yanomami |
| Yantra | Yantra |
| Yao | Yao |
| Yao Ming | Yao Ming |
| yaoi | yaoi |
| Yaoundé | Yaoundé |
| Yap | Yap |
| YAPC | Yet Another Perl Conference |
| Yaque del Norte | Yaque del Norte River |
| Yaqui | Yaqui |
| Yaracuy | Yaracuy |
| Yaranga | Yaranga |
| yard | yard |
| Yardena Arazi | Yardena Arazi |
| Yaren | Yaren |
| Yarkand | Yarkand County |
| Yarra | Yarra River |
| Yasak | Yassa |
| Yasmine Bleeth | Yasmine Bleeth |
| Yasser Arafat | Yasser Arafat |
| Yasuhito Endo | Yasuhito Endo |
| Yasujiro Ozu | Yasujirō Ozu |
| Yasukuni-schrijn | Yasukuni Shrine |
| Yasunari Kawabata | Yasunari Kawabata |
| Yasuo Fukuda | Yasuo Fukuda |
| Yatagan | Yatagan |
| Yautepec | Yautepec de Zaragoza |
| Yavanna Kementári | Yavanna |
| Yawi | Indonesian |
| Yaxchilán | Yaxchilan |
| Yaya Touré | Yaya Touré |
| Yayoi-periode | Yayoi period |
| Yazd | Yazd Province |
| Yazdagird I | Yazdegerd I |
| Ybbs an der Donau | Ybbs an der Donau |
| Ybbsitz | Ybbsitz |
| Ydalir | Ydalir |
| Ydre | Ydre Municipality |
| Yeah Yeah Yeahs | Yeah Yeah Yeahs |
| Year Of The Dragon | Year of the Dragon |
| Yed Posterior | Epsilon Ophiuchi |
| Yed Prior | Delta Ophiuchi |
| Yediot Ahronot | Yedioth Ahronoth |
| Yehudi Menuhin | Yehudi Menuhin |
| Yelkouanpijlstormvogel | Yelkouan Shearwater |
| Yellow Dog Linux | Yellow Dog Linux |
| Yellow Submarine | Yellow Submarine |
| Yellowstone Lake | Yellowstone Lake |
| Yellowstonecaldera | Yellowstone Caldera |
| YellowTAB ZETA | Magnussoft ZETA |
| Yelü Dashi | Yelü Dashi |
| Yemayá | Yemaja |
| yen | yen |
| Yeni Camii | Yeni Mosque |
| Yenikoy | Yenikoy |
| Yerkes-Dodson-wet | Yerkes-Dodson law |
| Yerres | Yerres |
| Yersinia | Yersinia |
| Yerupaja | Yerupajá |
| Yeshe Dorje | Yeshe Dorje |
| Yesterday went too soon | Yesterday Went Too Soon |
| Yesükhei | Yesugei |
| yeti | yeti |
| Yeísmo | Yeísmo |
| Yeşil Camii | Yeşil Cami |
| Yggdrasil | Yggdrasil |
| Yi | Yi people |
| Yi Quan | Yiquan |
| Yi Sun-sin | Yi Sun-sin |
| Yiannis Kouros | Yiannis Kouros |
| Yichang | Yichang |
| Yie Ar Kung-Fu | Yie Ar Kung-Fu |
