World Tamil Diaspora Day 2026 was organised on 11-12 January 2026 in Chennai by the Tamil Nadu Government's Department of Non-Resident Tamils Welfare to connect Non-Resident Tamils worldwide and promote Tamil language, culture and heritage. The 2026 theme was 'Thamizhaal Inaivom, Tharanil Uyarvom', featuring discussions, exhibitions and cultural programmes.