Star Wars: The Clone Wars has 7 seasons. Season 1 has 22 episodes, Season 2 has 22, Season 3 has 22, Season 4 has 22, Season 5 has 20, Season 6 has 13, and Season 7 has 12 episodes.

Episode counts

Season| Episodes
---|---
1| 22 1
2| 22 1
3| 22 1
4| 22 1
5| 20 1
6| 13 16
7| 12 19

Quick note

The series originally aired across 6 seasons on TV, then the final season was released later, bringing the total to 7 seasons.