22 Tamil films of 2015 ranked by box office. #1: I (₹239 crore).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | I | S. Shankar | ₹100 crore | ₹239 crore | 2.39x | |
| 2 | Kanchana 2 | Raghava Lawrence | ₹17 crore | ₹108 crore | 6.35x | |
| 3 | Uthama Villain | Ramesh Aravind | ₹101 crore | |||
| 3 | Puli | Chimbu Deven | ₹87 crore | ₹101 crore | 1.16x | |
| 5 | Thani Oruvan | Mohan Raja | ₹15 crore | ₹100 crore | 6.67x | |
| 5 | Papanasam | Jeethu Joseph | ₹100 crore | |||
| 5 | Well, If You Know Me | Gautham Vasudev Menon | ₹50 crore | ₹100 crore | 2.00x | |
| 8 | Rudhramadevi | Gunasekhar | ₹60 crore | ₹86.9 crore | 1.45x | |
| 9 | Massu Engira Masilamani | Venkat Prabhu | ₹55 crore | ₹79 crore | 1.44x | |
| 10 | O Kadhal Kanmani | Mani Ratnam | ₹6 crore | ₹52 crore | 8.67x | |
| 10 | Pasanga 2 | Pandiraj | ₹4.3 crore | ₹52 crore | 12.09x | |
| 12 | Vishwaroopam II | Kamal Haasan | ₹50 crore | |||
| 12 | Thoongavanam | Rajesh M. Selva | ₹50 crore | |||
| 14 | Darling | Sam Anton | ₹10 crore | ₹32 crore | 3.20x | |
| 15 | 10 Endrathukulla | S. D. Vijay Milton | ₹40 crore | ₹28 crore | 0.70x | |
| 16 | Demonte Colony | R. Ajay Gnanamuthu | ₹2 crore | ₹17 crore | 8.50x | |
| 17 | Panjumittai | S. P. Mohan | ₹14.3 lakh | ₹2.1 lakh | 0.15x | |
| Vedhalam | Siva | $9.3 million | $18.4 million | 1.98x | ||
| Anegan | K. V. Anand | $5.2 million | $8.2 million | 1.58x | ||
| Dheepan | Jacques Audiard | €8 million | $4.9 million | |||
| Visaranai | Vetrimaaran | $325,000 | $1.6 million | 4.92x | ||
| Indru Netru Naalai | R. Ravikumar | $620,000 | $1.4 million | 2.26x |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.