The Rmanj Monastery (Serbian: Манастир Рмањ, romanized: Manastir Rmanj) is a Serbian Orthodox monastery dedicated to Saint Nicholas and located in Martin Brod in north-western Bosnia and Herzegovina, at the left bank of the Unac River near its confluence with the Una.
The original monastery is dated to the late 15th century, after which it underwent several disasters and having to be rebuilt.
Bosnian Beylerbey Telli Hasan Pasha had the Rmanj Monastery renewed as a seat of his brother, Orthodox monk Gavrilo Predojević.
[2] The following year, Arthur Evans visited Rmanj (which he wrote as "Ermanja") and in one of his letters described the damage done to the monastery church by troops under the leadership of a Bosnian Muslim feudal lord.
[2] In World War II, a field hospital of the Yugoslav Partisans was organised at the monastery.