Trinidad (trēnēħäħˈ) [key], town (1983 est. pop. 43,500), Sancti Spíritus prov., central Cuba. Tobacco processing is the chief industry, although other agricultural processing has been developed. During the colonial period, Trinidad flourished as a port and was attacked several times by the British. The town is a living relic of the colonial period and has been declared a national monument and UNESCO World Heritage site.