Dubrovnik-Neretva County (area 9,272.37 sq km, population 122,870 in 2001) is the southernmost county of the Republic of Croatia and it is territorially divided into 22 units of local government and self-government. Characteristics and specifics of regional planning in Dubrovnik-Neretva County which considerably influenced historical and geographical as well as socio-economic development of the aforementioned area were analyzed on the grounds of field researches and analysis of different sources of physical data and available documents concerning regional planning (all levels of planning were studied). Regional planning in this area dates from the 1272 Statute of Dubrovnik, but Regional Plan of the Southern Adriatic (1964-1968) and General Urban Plan of Dubrovnik from 1969 are considered to be the beginning of the modern period of planning.