Dubina is a municipal part of the city district of Ostrava-Jih in the city Ostrava in the Czech Republic. It has 12,589 inhabitants.
It was established on 1 January 1984 as a new part of Ostrava, and was built during the 1980s and 1990s. On 24 November 1990, Dubina merged with Hrabà ¯vka, Zábà Âeh, VÃ½à ¡kovice and BÃÂlský Les to form one of the 23 self-governing boroughs of Ostrava.