Kupres (Serbian Cyrillic: Купрес), also known as Kupres Republike Srpske (Купрес Републике Српске) is a municipality in western Republika Srpska, an entity of Bosnia and Herzegovina.

The municipality was formed after the formation of the two entities of Federation of Bosnia and Herzegovina and Republika Srpska which together comprise the sovereign state of Bosnia and Herzegovina.

During the war, the municipality name was changed to Srpski Kupres (Српски Купрес), but since then the Government of Bosnia and Herzegovina has forbidden the use of that name to avoid nationalistic sentiment.

As of 2019, it is one of the smallest municipalities by number of inhabitants in Republika Srpska.

[1] Una-Sana  Central Bosnia Posavina  Herzegovina-Neretva Tuzla  West Herzegovina Zenica-Doboj  Sarajevo Bosnian Podrinje Canton 10