This is a list of Tamil language films produced in the Tamil cinema in India that were released in 2015. Over 200 Tamil films released in 2015, the biggest number of films to come from a single film industry in India.

Post-amendment to the Tamil Nadu Entertainment Tax Act 1939 on 27 September 2011, gross jumped to 130 per cent of net for films with non-Tamil titles and U certificates as well.Entertainment tax doubled to 30% (from 15%) for non-Tamil titles and U certificates Commercial Taxes Department disclosed 106.29 crore in entertainment tax revenue for the year.CTD reports 106.29 crore ET collection in 2015-16 According to Ormax Media industry report, the Tamil film segment registered domestic net box office receipts of 996 crore with 14 crore admissions.Kollywood admissions total 14 crore in India in 2015

Box office collection The list of highest-grossing Tamil films released in 2015, by worldwide box office gross revenue, are as follows:

RankTitleGrossProduction companyref(s)1I₹227—240 croreAascar Films S. Aishwarya (presenter)2Vedalam₹125.7 croreShri Sai Raam CreationsS.Aishwarya (Presenter)Vedalam total box office3Kanchana 2₹108 croreRaghava Lawrence4Thani Oruvan₹105 croreAGS Entertainment 5Papanasam₹102 croreWide Angle Creations RajKumar Theatres Pvt. Ltd.Uthama Villain₹101 croreRaaj Kamal Films InternationalThirupathi Brothers Film Media7Puli₹100 croreThameens FilmsSKT Studios8Yennai Arindhaal₹96 croreShri Sai Raam CreationsS.Aishwarya (Presenter)Nicy, V.P. (2 March 2015) 'Yennai Arinhdaal' Fourth Weekend Box Office Collection: Ajith Starrer Grosses ₹106 Crore Worldwide, Says Trade Analyst. International Business Times, India Edition9Masss₹79 croreStudio Green2D EntertainmentAadnah Arts10Thoongaa Vanam₹78 croreRaaj Kamal Films International11Anegan₹55 croreAGS Entertainment12Kaaki Sattai₹55 croreWunderbar Films13O Kadhal Kanmani₹52 croreMadras Talkies

Releases January - June