- December 1, 1969 (This strip is adapted in Happy Anniversary, Charlie Brown and What a Nightmare, Charlie Brown)
- Deecmber 2, 1969
- December 3, 1969
- December 4, 1969 (The day that A Boy Named Charlie Brown had its theatrical release)
- December 5, 1969
- December 6, 1969
- December 7, 1969
- December 8, 1969
- December 9, 1969
- December 10, 1969 (This strip and the following strip are adapted in the episode "The Winter Games" from the 2014 French TV series Peanuts)
- December 11, 1969
- December 12, 1969
- December 13, 1969
- December 14, 1969 (This strip is adapted in the segment "Peace on Earth from Lucy" of the 2002 special Charlie Brown's Christmas Tales)
- December 15, 1969 (Snoopy appears as the World Famous Skier)
- December 16, 1969
- December 17, 1969
- December 18, 1969
- December 19, 1969
- December 20, 1969
- December 21, 1969 (This strip is used on the page for December 22 of the Dayspring Peanuts A Year's Worth of Smiles and Blessings Desk Calendar)
- December 22, 1969
- December 23, 1969
- December 24, 1969
- December 25, 1969
- December 26, 1969
- December 27, 1969
- December 28, 1969
- December 29, 1969
- December 30, 1969
- December 31, 1969
← November 1969 | January 1970 → |