- 1 Young, John Russell, 1840-1899
- 2 Young, Smyth, Field & Co. (Firm)
- 1 Youth
- 5 Youth as a butterfly (Sculpture)
- 2 Youth centers
- 3 Youth orchestras
- 2 Youth organizations
- 3 Yuma, Arizona
- 2 Zachariah (Father of John the Baptist), Saint
- 1 Zaltbommel, Netherlands
- 2 Zane Street
- 1 Zaqualquin (Philosopher)
- 2 Zebras (mammals)
- 5 Zechariah (Biblical prophet)
- 1 Zeilin, J.H. & Co.
- 1 Zenobius, Saint, Bishop of Florence, d. 417?
- 1 Zephaniah (Biblical prophet)
- 2 Zeus (Greek deity)
- 1 Ziegler Shoe Factory
- 1 Zinc
- 1 Zinc industry and trade
- 1 Zinc mining
- 3 Zincographs
- 1 Zinzendorf, Nicolaus Ludwig, Graf von, 1700-1760
- 1 Zion Lutheran Church
- 1 Zocchi, Emilio.
- 23 Zodiac symbols
- 1 Zoological Gardens
- 1 Zoological Street
- 17 Zoos
- 2 Zouaves
- 1 Zuloaga, Placido