| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| Yazoo land fraud to Yunnan |
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| Yazoo land fraud |
| Yb |
| Yeadon |
| Yeager, Chuck |
| year |
| Yeardley, Sir George |
| Year 2000 problem |
| yeast |
| yeast infection |
| Yeats, Jack Butler |
| Yeats, W. B. |
| Yeddo |
| Yegorevsk |
| Yehoash |
| Yehoshua, A. B. |
| Yejmiadzin |
| Yekaterinburg |
| Yelets |
| Yelgava |
| Yelisavetgrad |
| Yellow Book |
| yellow daisy |
| Yellow Emperor |
| yellow fever |
| yellowhammer |
| Yellowhead Pass |
| yellow jacket |
| yellow journalism |
| Yellowknife |
| yellow poplar |
| Yellow River |
| Yellow Sea |
| Yellowstone |
| Yellowstone National Park |
| yellowwood |
| Yeltsin, Boris Nikolayevich |
| Yemen |
| Yemen, Southern |
| Yen, James Y. C. |
| Yenakiyeve |
| Yenan |
| Yenikale Strait |
| Yenisei |
| Yen Li-pen |
| Yenping |
| Yen-t’ai |
| yeoman |
| Yeomen of the Guard |
| Yeosu |
| Yeotmal |
| Yeovil |
| yerba buena |
| Yerba Buena Island |
| yerba maté |
| Yerevan |
| Yerkes, Charles Tyson |
| Yerkes, Robert Mearns |
| Yerkes Observatory |
| Yermak |
| Yersin, Alexandre Émile Jean |
| Yesenin, Sergei Aleksandrovich |
| Yeshiva University |
Ye il Irmak |
| Yesso |
| yeti |
| Yevpatoriya |
| Yevtushenko, Yevgeny Aleksandrovich |
| yew |
| Yezd |
| Yezo |
| Yggdrasill |
| Yibin |
| Yichang |
| Yiddish language |
| Yin |
| Yinchuan |
| Yingkou |
| Yining |
| ylang-ylang |
| Ymir |
| yodel |
| yoga |
| Yogacara |
| Yogananda |
| yogurt |
| Yogyakarta |
| Yoho National Park |
| Yokkaichi |
| Yokohama |
| Yokosuka |
| Yokuts |
| Yola |
| Yom Kippur |
| Yom Kippur War |
| Yonge, Charlotte Mary |
| Yonkers |
| Yonne |
| Yorba Linda |
| Yorck von Wartenburg, Ludwig, Graf |
| Yoritomo |
| York, Alvin Cullum |
| York, Cardinal |
| York, Edmund of Langley, duke of |
| York, Edward, duke of |
| York, Frederick Augustus, duke of |
| York, Richard, duke of |
| York, former name of Toronto, Canada |
| York, city, England |
| York, city, United States |
| York, Cape |
| York, house of |
| York College |
| Yorke, Henry Vincent |
| Yorke Peninsula |
| Yorker Brethren |
| York Factory |
| York Plays |
| Yorkshire |
| Yorkshire terrier |
| Yorkton |
| Yorktown |
| Yorktown campaign |
| York University |
| York von Wartenburg, Ludwig, Graf |
| Yoruba |
| Yosai |
| Yosano, Akiko |
| Yosemite National Park |
| Yoshida, Shigeru |
| Yoshihito |
| Yoshkar-Ola |
| Yosu |
| Youlou, Fulbert |
| Youmans, Vincent |
| Young, Andrew Jackson, Jr. |
| Young, Arthur |
| Young, Brigham |
| Young, Charles Augustus |
| Young, Cy |
| Young, Edward |
| Young, Ella Flagg |
| Young, Geoffrey Winthrop |
| Young, John Russell |
| Young, John Watts |
| Young, Lester Willis |
| Young, Mahonri Mackintosh |
| Young, Thomas |
| Younger, Cole |
| Young-Helmholtz theory |
| Younghusband, Sir Francis Edward |
| Young Men’s and Young Women’s Hebrew Associations |
| Young Men’s Christian Association |
| Young Plan |
| Young Pretender |
| Young’s modulus |
| Youngstown |
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