Martin Brod () is a village in the municipality of BihaÃÂ, Bosnia and Herzegovina.
It is mostly known for its proximity to Una National Park, which is Bosnia and Herzegovina's largest national park.
The Una forms a number of calcareous sinter banks and cascades near Martin Brod, including around the MilanÃÂetov buk waterfall, before it receives the Unac just north of the village.
The confluence of Una and Unac is the location of the medieval Rmanj Fortress, as well as the Rmanj Monastery.
According to the 2013 census, its population was 124.