Encyclopedias, Almanacs, Transcripts, and Maps
- Williamsport
- Willibald, Saint
- Willibrord, Saint
- Willimantic
- Willingdon, Freeman Freeman-Thomas, 1st marquess of
- Willis Tower
- Williston
- Williston, Samuel Wendell
- Willmar
- Willowick
- Wilmette
- Wilmot, John
- Wilmut, Sir Ian
- Wilson cloud chamber
- Wilson Dam
- Wilson's thrush
- Wilson, Jack
- Wilson, James Grant
- Wilson, Mount
- Wilson, William Lyne