 O Kadhal Kanmani A. R. Rahman |  Odi Odi Uzhaikkanum Ghibran |  Odu Raja Odu Tosh |  Oh Maane Maane Ilayaraja |  Oh My Kadavule Ashok Selvan, Ritika Singh, Vani Bhojan |
 Oi Kannazhagi Vimalathithan Bupathy |  OM N.R.Ragunanthan |  Onaaigal Jakkiradhai Adheesh Uthriyan |  Onaiyum Aatukuttiyum Ilayaraja |  Onbadhu Roobai Nottu Bharathwaj |
 Onbathu Kuzhii Sampath V.A. Charlie,Sunil Xavier |  Once More Deva |  Ondikatta Bharani |  Ondikku Ondi Deejay Gan | |
 Ondraga Originals Karthik |  One Day Kadhalan Sunil S |  One Love A. R. Rahman |  Ongala Podanum Sir Rejimon TKL |  Onnume Aagala - Album Anirudh Ravichander |
 Oomai Ullangal Ilayaraja |  Oomai Vizhigal Manu Ramesan |  Oorellam Un Paattu Ilayaraja |  Oorkavalan Sankar Ganesh |  Ooru Vittu Ooru Vanthu Ilayaraja |
 Oram Poo G. V. Prakash Kumar |  Orange Mittai Justin Prabhakaran |  Ore Oru Gramathiley Ilayaraja |  Ore Oru Raja Mokka Raaja Suman Bichu |  Oru Adaar Love Shaan Rahman, Gopi Sunder |
 Oru Cup Tea - Album Tea Kada Pasanga |  Oru Kadhai Sollatuma Rahul Raj |  Oru Kadhal Seiveer Bharani |  Oru Kaidhiyin Diary Ilayaraja |
