List of Malayalam Songs written by OS Unnikrishnan
| Sl | Song | Movie | Year | Singer | Lyrics | Musician |
|---|---|---|---|---|---|---|
| 1 | Thozhaa En Thozhaa ... | Avan | 2010 | Vijay Yesudas | OS Unnikrishnan | Anil Gopalan |
| 2 | Maayaathe Nilppu ... | Avan | 2010 | Shankar Mahadevan | OS Unnikrishnan | Anil Gopalan |
| 3 | Shadamgurapura ... | Avan | 2010 | MG Sreekumar, Sudarsan | OS Unnikrishnan | Anil Gopalan |
| 4 | Agnijwaalayaay ... | Avan | 2010 | Suresh Vasudev, Vivekanandan | OS Unnikrishnan | Anil Gopalan |
| 5 | Oru Kunjukaattin ... | Avan | 2010 | Vijay Yesudas | OS Unnikrishnan | Vijay Yesudas |
| 6 | Poy Maranjo ... | Avan | 2010 | Ramesh Narayan | OS Unnikrishnan | Ramesh Narayan |
| 7 | Vazhiyorathenno ... | Avan | 2010 | Shweta Mohan, Vivekanandan | OS Unnikrishnan | Anil Gopalan |
| 8 | Analakkannaai ... | Avan | 2010 | KJ Yesudas | OS Unnikrishnan | Rajamani |
| 9 | Vazhiyorathenno ... | Avan | 2010 | Athira, Vishnu Krishnan | OS Unnikrishnan | Anil Gopalan |
| 10 | Pularoli Pakarum ... | Lasaagu | 2015 | CV Biswajith | OS Unnikrishnan | Anil Gopalan |
| 11 | Ithra Pakalinodothu ... | Lasaagu | 2015 | Gayathri Asokan | OS Unnikrishnan | Anil Gopalan |
| 12 | Aaraano Maanathe ... | Lasaagu | 2015 | Vanamali Das | OS Unnikrishnan | Anil Gopalan |
| 13 | Kaattuponthayil ... | Vidooram | 2017 | Nikhil Prabha | OS Unnikrishnan | Anil Gopalan |
| 14 | Nenchin Ninave ... | Ankaraajyathe Jimmanmaar | 2018 | Hariharan, Nikhitha | OS Unnikrishnan | Girish Surya Narayan |
| 15 | Nenchin Ninave ... | Ankaraajyathe Jimmanmaar | 2018 | Hariharan | OS Unnikrishnan | Girish Surya Narayan |
| 16 | Mattullathu Mattullathu ... | Ankaraajyathe Jimmanmaar | 2018 | Vaishnav Gireesh | OS Unnikrishnan | Girish Surya Narayan |
| 17 | Nenchin Ninave ... | Ankaraajyathe Jimmanmaar | 2018 | Nikhitha | OS Unnikrishnan | Girish Surya Narayan |
| 18 | Puzhayayee ... | Cross Road | 2017 | OS Unnikrishnan | Bijibal |