 O Kadhal Kanmani A. R. Rahman |  O2 Vishal Chandrasekar |  Odavum Mudiyadhu Oliyavum Mudiyadhu Kaushik Krish |  Odi Odi Uzhaikkanum Ghibran |  Odu Raja Odu Tosh |
 Oh Maane Maane Ilayaraja |  Oh Manapenne Vishal Chandrashekhar |  Oh My Dog Nivas K. Prasanna |  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 | |
 Ondraga Originals Album 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 |
 Oorukaaran Hiphop Tamizha |  Ooty Deva |  Oram Poo G. V. Prakash Kumar |  Orange Mittai Justin Prabhakaran |  Ore Oru Gramathiley Ilayaraja |
