Y
- Yankee Jims, California – a criminal with that nickname
- Ybor City, Tampa, Florida – Vicente Martinez Ybor
- Yonkers, New York – Adriaen van der Donck (landowner who known locally as the Jonkheer)
- Yorba Linda, California – Bernardo Yorba (built Yorba Hacienda near here)
- Yorkville, California – R.H. York (Founder)
- Youngs, California – Morgan W. Youngs (first postmaster)
- Youngs Hill, California – William Young and his brother (discoverers of gold at the place)
- Youngstown, Ohio – John Young (Founder)
- Ypsilanti, Michigan – Demetrius Ypsilanti (hero in the Greek War of Independence)
Read more about this topic: List Of American Places Named After People