Trnovo (Serbian Cyrillic: Трново) is a municipality of the city of Istočno Sarajevo, Republika Srpska, Bosnia and Herzegovina.

Roughly two thirds of the pre-war Trnovo municipality is now part of the Federation of Bosnia and Herzegovina entity.

[citation needed] Aside from the town of Trnovo, the municipality includes the following settlements:[4] The pre-war municipality, with 63 settlements, had a total population of 6,991 people, of whom Muslims consisted 68.81% and Serbs 29.45% of total population.

Most of the Serb-inhabited settlements became part of the Trnovo municipality of Republika Srpska (RS).

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