Jamaican Patois (Patwa) is an English-based creole language/dialect spoken primarily in Jamaica. It is not a distinct language with its own standardized grammar and official status in multiple countries.
The question likely intends: Where is English spoken officially or widely? Since Jamaican Patois derives from English, here are countries where English is an official or dominant language:
It is spoken by the Jamaican diaspora (UK, US, Canada, Cayman Islands) but has no official status outside Jamaica. Linguistically, it's a creole with West African substrate and English superstrate — mutually unintelligible with standard English in its basilectal form.