| 40th Kerala State Film Awards | |
| Awarded For: | Best of Malayalam Cinema in 2009 |
| Presenter: | Kerala State Chalachitra Academy |
| Location: | Thiruvananthapuram |
| Country: | India |
| Year: | 1969 |
| Website: | http://www.keralafilm.com |
| Previous: | 2009 (39th) |
| Main: | Kerala State Film Awards |
| Next: | 2011 (41st) |
The 40th Kerala State Film Awards were announced and presented on 6 April 2010.
| Name of Award | Awardee(s) | Name of Film | Remarks |
|---|---|---|---|
| Best Film | Ranjith | Paleri Manikyam: Oru Pathirakolapathakathinte Katha | |
| Second Best Film | Ramanam | ||
| Best Director | Hariharan | Pazhassi Raja | |
| Best Actor | Mammootty | Paleri Manikyam: Oru Pathirakolapathakathinte Katha | |
| Best Actress | Shwetha Menon | Paleri Manikyam: Oru Pathirakolapathakathinte Katha | |
| Second Best Actor | Manoj K Jayan | Pazhassi Raja | |
| Second Best Actress | Padmapriya | Pazhassi Raja | |
| Best Comedian | Suraj Venjaramoodu | Ivar Vivahitharayal | |
| Best Child Artist | Baby Niveditha | Bhramaram | |
| Best Story | Sasi Paravoor | Kadaksham | |
| Best Cinematography | K G Jayan | Sufi Paranja Katha | |
| Best Screenplay | M. T. Vasudevan Nair | Pazhassi Raja | |
| Best Lyrics | Rafeeq Ahammed | Sufi Paranja Katha | for the song Thekkinikkolaya chumaril |
| Best Music Director | Mohan Sithara | Sufi Paranja Katha | for the song Thekkinikkolaya chumaril |
| Best Male Playback Singer | K. J. Yesudas | Madhya Venal | for the song Swantham balyathiloode |
| Best Female Playback Singer | Shreya Ghoshal | Banaras | for the song Chandhu Thottille |