W
- Wahta Mohawks Library
- Wainfleet Township Public Library
- Wasaga Beach Public Library
- Waterloo Public Library
- Welland Public Library
- Wellington County Public Library
- West Grey Public Library
- West Lincoln Public Library
- West Nipissing Public Library
- West Perth Public Library
- Whitby Public Library
- Whitchurch-Stouffville Public Library
- White River Public Library
- Whitewater Region Public Library
- Windsor Public Library
- Woodstock Public Library
Read more about this topic: List Of Public Libraries In Ontario