The SAO of Romanija (Serbian Cyrillic: САО Романија, Serbian: SAO Romanija) was a self-proclaimed ethnic Serb autonomous region within SR Bosnia and Herzegovina in the prelude to the Bosnian War.

It included parts of three municipalities with a population of 37,000.

[1] It existed from 1991 to 1992 when it became part of Republika Srpska.

[2] Actually it is related to the former Region of Sarajevo-Romanija, inside the historical Romanija.

[3][4] In March 1992 the SAOs were unified into the Serb Republic of Bosnia and Herzegovina, renamed to Republika Srpska on 12 August.