Winchendon may refer to:
Places
In the United Kingdom:
- Nether Winchendon, Buckinghamshire
- Upper Winchendon, Buckinghamshire
In the United States:
- Winchendon, Massachusetts, a New England town
- Winchendon (CDP), Massachusetts, the main village in the town
Other uses
- Baron Wharton, a title in the Peerage of England