| yam | pochrzyn |
| Yamaceratops | Jamaceratops |
| Yamagata | Prefektura Yamagata |
| Yamaguchi | Prefektura Yamaguchi |
| Yamaha Corporation | Yamaha |
| Yamanaka Ino | Ino Yamanaka |
| Yamanashi | Prefektura Yamanashi |
| Yamato | Yamato |
| Yamcha | Yamcha |
| Yamoussoukro | Jamusukro |
| yamplant | pochrzyn |
| yamswortel | pochrzyn |
| Yamuna | Jamuna |
| Yancey County | Hrabstwo Yancey |
| Yang Liwei | Yang Liwei |
| Yang Sze | Bolo Yeung |
| Yangchuanosaurus | Jangczuanozaur |
| Yankee | jankes |
| Yann Tiersen | Yann Tiersen |
| Yannick Noah | Yannick Noah |
| Yanomamö | Janomamowie |
| Yantra | Jantra |
| Yao | Yao |
| Yao Ming | Yao Ming |
| Yaoundé | Jaunde |
| Yap | Yap |
| Yaqui | Yaqui |
| Yaracuy | Yaracuy |
| Yaren | Yaren |
| Yarra | Yarra |
| Yasak | Jasa |
| Yasmine Bleeth | Yasmine Bleeth |
| Yasser Arafat | Jaser Arafat |
| Yasujiro Ozu | Yasujirō Ozu |
| Yasunari Kawabata | Yasunari Kawabata |
| Yasuo Fukuda | Yasuo Fukuda |
| Yatagan | Jatagan |
| Yates County | Hrabstwo Yates |
| Yavanna Kementári | Yavanna |
| Yavapai County | Hrabstwo Yavapai |
| Yawi | Język indonezyjski |
| Yaxchilán | Yaxchilan |
| Yaya Touré | Gnégnéri Yaya Touré |
| Yayoi-periode | Yayoi |
| Yazd | Jezd |
| Yazdagird I | Jezdegerd I |
| Ydre | Gmina Ydre |
| Yeah Yeah Yeahs | Yeah Yeah Yeahs |
| Year Of The Dragon | Year Of The Dragon |
| Yehudi Menuhin | Yehudi Menuhin |
| Yelkouanpijlstormvogel | Burzyk śródziemnomorski |
| Yellow Dog Linux | Yellow Dog Linux |
| Yellow Submarine | Yellow Submarine |
| Yellowknife | Yellowknife |
| Yellowstone Lake | Yellowstone |
| YellowTAB ZETA | YellowTAB Zeta |
| Yemayá | Jemaja |
| yen | jen |
| Yeni Camii | Nowy Meczet w Stambule |
| Yens | Yens |
| Yerba Buena | Yerba Buena |
| Yerington | Yerington |
| Yerkes-Dodson-wet | Prawa Yerkesa-Dodsona |
| Yerres | Yerres |
| Yersinia | Yersinia |
| Yerupaja | Yerupaja |
| YES | Yes |
| yeti | yeti |
| Yggdrasil | Yggdrasil |
| Yi Quan | Yiquan |
| Yieldcurve | Krzywa dochodowości |
| Yigal Amir | Jigal Amir |
| Yin yang | Yin i yang |
| Yinlong | Jinlong |
| Yipsi Moreno | Yipsi Moreno González |
| Yisrael Beytenu | Yisrael Beitenu |
| Yisroel ben Eliezer | Israel Baal Szem Tow |
| Yitzchak Rabin | Icchak Rabin |
| Yitzhak Navon | Icchak Nawon |
| Yitzhak Shamir | Icchak Szamir |
| YLE | YLE |
| Yli-Ii | Yli-Ii |
| Ylitornio | Gmina Övertorneå |
| YMCA | YMCA |
| Ymir | Ymir |
| Ymnos eis tin Elephterian | Hymn Cypru |
| Yo-Yo Ma | Yo-Yo Ma |
| Yoann Gourcuff | Yoann Gourcuff |
| Yobe | Yobe |
| Yochanan Vollach | Yochanan Vollach |
| Yocto | Jokto |
| Yoctogram | Joktogram |
| Yoda | Yoda |
| yoghurt | jogurt |
| Yohann Diniz | Yohan Diniz |
| Yoko Ono | Yoko Ono |
| Yokohama | Jokohama |
| Yokozuna | Yokozuna |
| Yolande van Jeruzalem | Jolanta Jerozolimska |
| Yoldiazee | Morze Yoldiowe |
| Yone Minagawa | Yone Minagawa |
| Yonkers | Yonkers |
| Yonne | Yonne |
| Yopal | Yopal |
| YOPER | Yoper |
| York | York |
| York County | Hrabstwo York |
| Yorktown-klasse | Lotniskowce typu Yorktown |
| Yoruba | Język joruba |
| Yos Sudarso | Yos Sudarso |
| Yosef Lapid | Yosef Lapid |
| Yoshie Takeshita | Yoshie Takeshita |
| Yoshihide Otomo | Yoshihide Otomo |
| Yoshihito | Yoshihito |
| Yoshiki Hayashi | Yoshiki Hayashi |
| Yossi Benayoun | Yossi Benayoun |
| Yosuke Matsuoka | Yosuke Matsuoka |
| Yotta | Jotta |
| Yottabyte | Jottabajt |
| You Could Have It So Much Better | You Could Have It So Much Better |
| You Only Live Twice | Żyje się tylko dwa razy |
| Young Artist Award | Nagroda Młodych Artystów |
| Young Man with a Horn | Młody człowiek z trąbką |
| Young-plan | Plan Younga |
| Youngstown | Youngstown |
| Youri Djorkaeff | Youri Djorkaeff |
| Yousuf Karsh | Yousuf Karsh |
| YouTube | YouTube |
| Yoweri Museveni | Yoweri Museveni |
| YPbPr | YPbPr |
| Yperiet | Iperyt |
| Ypresien | Ipres |
| Ypsilanti | Ypsilanti |
| Ystad | Ystad |
| Ysyk-Köl | Issyk-Kul |
| ytterbium | iterb |
| yttrium | itr |
| Yuan | Yuan |
| Yuan Shikai | Yuan Shikai |
| Yuan-dynastie | Dynastia Yuan |
| Yucateeks Maya | Języki majańskie |
| Yucatán | Jukatan |
