- December 1, 1985: (This comic was made into a Quickie.)
- December 2, 1985:
- December 3, 1985:
- December 4, 1985:
- December 5, 1985:
- December 6, 1985:
- December 7, 1985:
- December 8, 1985:
- December 9, 1985:
- December 10, 1985:
- December 11, 1985:
- December 12, 1985:
- December 13, 1985:
- December 14, 1985:
- December 15, 1985: (This comic was made into a Quickie.)
- December 16, 1985:
- December 17, 1985:
- December 18, 1985: (This strip was adapted into Garfield in Paradise.)
- December 19, 1985:
- December 20, 1985:
- December 21, 1985:
- December 22, 1985:
- December 23, 1985:
- December 24, 1985:
- December 25, 1985: (Christmas Day.)
- December 26, 1985:
- December 27, 1985:
- December 28, 1985:
- December 29, 1985:
- December 30, 1985:
- December 31, 1985: (The last comic strip of 1985.)
| ← Garfield, November 1985 | Garfield, January 1986 → |