List of Tamil films of 2004
Prior to the amendment of Tamil Nadu Entertainments Tax Act 1939 on 4 October 2004, gross was 125 per cent of net for all films. Post-amendment, gross fell to 115 per cent of net. The Commercial Taxes Department disclosed 59.09 crore in entertainment tax revenue for the year.
A list of films released in the Tamil film industry in India in 2004:
Box office collection
The following is the [list of highest-grossing Tamil cinema|Tamil films|list of highest-grossing Tamil cinema films] released in 2004.| Rank | Title | Production company | Worldwide gross |
| 1 | Ghilli | Sri Surya Movies | |
| 2 | Virumaandi | Raaj Kamal Films International | |
| 3 | Vasool Raja MBBS | Gemini Film Circuit | |
| 4 | Manmadhan | Indian Theatre Productions | |
| 5 | M. Kumaran Son of Mahalakshmi | Jayam Productions | |
| 6 | Engal Anna | Aandal Azhagar Cine Creations | |
| 7 | Madhurey | Movie Magic | |
| 8 | Autograph | Dream Theatres | |
| 9 | 7/G Rainbow Colony | Sri Surya Movies | |
| 10 | Arul | Lakshmi Productions |
List of Tamil films
Other releases
The following films were also released in 2004, though the release date remains unknown.| Title | Director | Cast | Studio | Ref |
| Jollyman | K. K. Muthukumaar | Pandiarajan, Aishwarya | Varshini | |
| Kizhakku Boomi | D. K. Bose | Poornakala Production | ||
| Pinju Nenjangal Puthiyathor Ulagam | Ilayavan | APN Pictures | ||
| Pithan | N. Manikandan | Ashwathaman, Devan, Priya | ||
| Senthalam Poove | Benjamin | Livingston, Devayani | NS Pictures |