The 1966–67 Serie A season was won by Juventus, it was their second scudetto of the 1960s.
The season was closely contested and went down to the final day of the season; Internazionale were left needing just a draw or having Juventus not beat Lazio to win the title.
However, Inter lost 1–0 on the final day to Mantova thanks to a goal from one of their former players, Beniamino Di Giacomo.
A transitional relegation place was added to reduce the league to 16 clubs.
Six out of the eighteen clubs came from Lombardy, a record for a single region of Italy.