11 Tamil films of 2018 ranked by box office. #1: 2.0 (₹699.9 crore).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | 2.0 | Shankar | ₹400 crore | ₹699.9 crore | 1.75x | |
| 2 | Sarkar | A. R. Murugadoss | ₹110 crore | ₹253 crore | 2.30x | |
| 3 | Kaala | Pa Ranjith | ₹140 crore | ₹159.6 crore | 1.14x | |
| 4 | Kanchana 3 | Raghava Lawrence | ₹130 crore | |||
| 5 | Thaana Serndha Kootam | Vignesh Shivan | ₹90 crore | |||
| 6 | Kolamavu Kokila | Nelson Dilipkumar | ₹8 crore | ₹73 crore | 9.13x | |
| 7 | Kadaikutty Singam | Pandiraj | ₹25 crore | ₹70 crore | 2.80x | |
| 8 | Tik Tik Tik | Shakti Soundar Rajan | ₹57.6 crore | |||
| 9 | Nota | Anand Shankar | ₹60 crore | ₹25.5 crore | 0.43x | |
| 10 | Aan Devathai | Thamira | ₹18 crore | |||
| 11 | Santhoshathil Kalavaram | ₹3 crore | ₹14 crore | 4.67x |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.