- Windsor
- Windsorville
- Winnipauk
- Winnipauk Village
- Wintergreen Island
- Winthrop
- Wood Island
- Woodbury Center
- Woodstock
- Woodstock Valley
- Woodtick
- Woodville
- Woolsey Rock
- Wooster Island
- Wopowog
- Wormwood Hill
- Wrights Island (historical)
- Wrightville
- Watertown
- Westport
- Woodbridge
- Woodbury
- Wallingford Center
- Waterbury
- Wauregan
- Weatogue
- West Hartford
- West Haven
- West Simsbury
- West Torrington