Comprehensive list of Tamil movies released in 2003. Click on movie names for more details.
| Movie Name | Director | Cast |
|---|---|---|
| Iyarkai | S.P. Jananathan | Shaam, Arun Vijay, Kutti Radhika |
| Vikadan | Arun Pandian | Harish Raghavendra, Arun Pandian, Gayathri Raguram, Radhika Chaudhari, Uma, Nassar, Rekha, Vijayan, Venkat Prabhu |
| Anjaneya | Maharajan | Ajith Kumar, Meera Jasmine, Anu Hasan |
| Nala Damayanthi | Mouli | R. Madhavan, Geetu Mohandas, Shrutika, Anu Hasan |
| Paarai | K.S. Ravikumar | Sarath Kumar, Jayaram, Meena, Ramya Krishnan, Anand, Chiti Babu, Vijayan, Vinu Chakravarthy, Vadivukkarasi |
| Dhool | Dharani | Vikram, Jyothika, Reemma Sen |
| Anbe Sivam | Sundar C | Kamal Haasan, R. Madhavan, Kiran |
| Annai Kaligambal | Rama Narayanan | Livingston, Ramya Krishnan, Anu Prabhakar |
| Chokka Thangam | K. Bhagyaraj | Vijayakanth, Soundarya, Prakash Raj |
| Kalatpadai | J. Ramesh | Jay, Vidhu, Nithin Sathya |
| Ramachandra | Raj Kapoor | Sathyaraj, Vijayalakshmi |
| Vaseegara | K. Selva Bharathy | Vijay, Sneha |
| Pop Carn | Nassar | Mohanlal, Simran |
| Aasai Aasaiyai | Ravi Mariya | Jiiva, Sharmilee |
| Anbu | Thalapathy Raj | Bala, Deepu, Vadivelu |
| Anbu Thollai | Hayath | Pandiarajan, Ravali |
| Julie Ganapathi | Balu Mahendra | Jayaram, Saritha, Ramya Krishnan |
| Kadhaludan | Rajakumaaran | Murali, Devayani |
| Student Number 1 | Selva | Sibi Raj, Sherin |
| Yes Madam | Rajaji | Prabhu, Vijayalakshmi, Vindhya |
| Military | G. Sai Suresh | Sathyaraj, Rambha, Vijayalakshmi |
| Pallavan | Padmamagan | Manoj Bharathiraja, Rathi |
| Manasellam | Santhosh | Srikanth, Trisha |
| Nilavil Kalangamillai | V. Sabrivel | Agnivesh, Malar, Babilona |
| Pavalakodi | Ram-CP Saravanan | Vijay Sarathi, Robert, Paval, Shaama, Nirosha |
| Ennai Thalatta Varuvala | K. S. Ravindran | Ajith Kumar, Vignesh, Reshma |
| Dum | A. Venkatesh | Silambarasan, Rakshita |
| Kadhal Sadugudu | V. Z. Durai | Vikram, Priyanka Trivedi |
| Sena | Sujith | Sathyaraj, Aravind Akash, Rakshita |
| Arasu | Suresh | Sarathkumar, Simran, Roja |
| Banda Paramasivam | T. P. Gajendran | Prabhu, Abbas, Rambha, Monika |
| Punnagai Poove | S. D. Sabapathy | Nandha, Kaveri, Rekha Vedavyas |
| Anbae Anbae | Mani Bharathi | Shaam, Sharmelee |
| Indru Mudhal | M. A. Murugesh | Mithun Tejaswi, Nanditha |
| Saamy | Hari | Vikram, Trisha |
| Pudhiya Geethai | K. P. Jagan | Vijay, Ameesha Patel, Meera Jasmine |
| Lesa Lesa | Priyadarshan | Shaam, Trisha, Madhavan |
| Parthiban Kanavu | Karu Pazhaniappan | Srikanth, Sneha |
| Parasuram | Arjun | Arjun, Kiran, Gayathri Raguram |
| Jayam | M. Raja | Jayam Ravi, Sadha |
| Ice | Raghuraj | Ashok, Priyanka Trivedi |
| Kadhal Kondein | Selvaraghavan | Dhanush, Sonia Agarwal |
| Kovilpatti Veeralakshmi | K. Rajeshwar | Simran, Sonu Sood, Sherin |
| Whistle | J.D-Jerry | Vikramaditya, Sherin, Gayathri Raguram |
| Priyamana Thozhi | Vikraman | R. Madhavan, Jyothika, Sridevi Vijayakumar |
| Aahaa Ethanai Azhagu | Kanmani | Mithun Tejaswi, Charmee |
| Kadhal Kisu Kisu | P. Vasu | Bala, Charmee |
| Thayumanavan | Saravanan | Saravanan, Prema |
| Kaakha Kaakha | Gautham Menon | Suriya, Jyothika |
| Thithikudhe | Brinda Sarathy | Jiiva, Sridevi Vijayakumar, Shrutika |
| Eera Nilam | Bharathiraja | Manoj Bharathiraja, Nandhita |
| Alaudin | Ravi Chakravathy | Prabhu Deva, Ashima Bhalla |
| Thennavan | Nandakumaran | Vijayakanth, Kiran Rathod |
| Diwan | Maayee Suryaprakash | Sarath Kumar, Kiran Rathod |
| Boys | S. Shankar | Siddharth, Genelia, Vivek, Bharath, Nakul, Thaman, Manikandan |
| Success | Prashanthshekhar | Dushyanth, Sonia Agarwal, Nandana |
| Thiruda Thirudi | Subramaniam Siva | Dhanush, Chaya Singh |
| Alai | Vikram Kumar | Silambarasan, Trisha |
| Aalukkoru Aasai | V. Shekar | Sathyaraj, Meena, Manthra |
| Naam | Saba Kailash | Prakash Raj, Reshmi |
| Unnai Charanadaindhen | Samuthirakani | Venkat Prabhu, S. P. B. Charan, Meera Vasudevan, Santhoshi |
| Bheeshmar | Ranjith | Ranjith, Devayani |
| Galatta Ganapathy | Ram Selva | Pandiarajan, Sanghavi |
| Kaiyodu Kai | Ranjan Sharma | Aravind Akash, Yugendran, Sona |
| Ragasiyamai | Amuthan | Prasanna, Neelan Singh |
| Three Roses | Parameswar | Rambha, Jyothika, Laila |
| Winner | Sundar C. | Prashanth, Kiran |
| Vadakku Vaasal | B. M. Sundar | Pandiarajan, Nalini |
| Ottran | Ilankannan | Arjun, Simran, Tejashree |
| Pithamagan | Bala | Vikram, Suriya, Laila, Sangeetha |
| Thirumalai | Ramana | Vijay, Jyothika, Kausalya |
| Jay Jay | Saran | R. Madhavan, Pooja Umashankar, Amoga |
| Kurumbu | Vishnuvardhan | Allari Naresh, Nikita Thukral, Diya |
| Nadhi Karaiyinile | Ponvannan | Saranya Ponvannan |
| Kadhal Kirukkan | Sakthi Chidambaram | R. Parthiban, Richa Pallod, Vineeth |
| Enakku 20 Unakku 18 | Jyothi Krishna | Tarun Kumar, Trisha, Shriya |
| Joot | Azhagam Perumal | Srikanth, Meera Jasmine |
| Thathi Thavadhu Manasu | Azhagu Rajusundaram | Mumtaj, Kalabhavan Mani |
| Soori | Shelvan | Vignesh, R. Parthiban, Uma, Vijayalakshmi |
| Indru | Naveen Muthuraman | Karthik Muthuraman, Tanu Roy |
| Sindhamal Sidharamal | K. A. Shanmugavel | Abbas, Nandita |