 O Kadhal Kanmani A. R. Rahman |  Odavum Mudiyadhu Oliyavum Mudiyadhu Kaushik Krish |  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 |  Ooty Deva |  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 |
