- Dec 3 "Rubber Soul", the sixth studio album by the Beatles, is released in the United Kingdom
- Dec 3 The Beatles begin final UK concert tour in Glasgow, Scotland
- Dec 4 "Roar of the Greasepaint" closes at Shubert NYC after 232 performances
- Dec 5 Brunswick Records releases "My Generation", the debut album of British rock group The Who, in the UK and Australia
- Dec 6 2 trucks crash into a crowd of dancers in Sotouboua Togo, kills 125
- Dec 10 Michael Leonard and Herbert Martin's musical "The Yearling" opens at Alvin Theater, NYC; runs for 3 performances
- Dec 11 Michael Leonard and Herbert Martin's musical "The Yearling" closes at Alvin Theater, NYC, after 3 performances
- Dec 11 Robert Wright and George Forrest' musical "Anya" closes at Ziegfeld Theater, NYC, after 16 performances
- Dec 12 The Beatles' last concert in Great Britain at Capitol Theatre in Cardiff, Wales
- Dec 14 "La Grusse Valise" opens at 54th St Theater NYC for 7 performances
- Dec 15 David Heneker and John Taylor's musical "Charlie Girl" opens at the Adelphi Theatre, London; runs for 2,202 performances
Houston Astrodome
Dec 17 1st concert event at Houston Astrodome: Judy Garland headlines, with The Supremes as opening act
- Dec 18 "La Grusse Valise" closes at 54th St Theater NYC after 7 performances
McCartney on Pirate Radio
Dec 26 Paul McCartney is interviewed on pirate radio station Radio Caroline
"My World is Empty Without You"
Dec 29 The Supremes release single "My World is Empty Without You"
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