Paroreio (pronounced Parori by locals) (Greek: Παρόρειο, before 1926: Μπιτούσα – Bitousa;[2][3] Bulgarian: Битуша, Macedonian: Битуша, Bituša/Bitusha) is a small village located about 15 kilometres (9.3 mi) north of Florina, the capital of the regional unit of Florina in northwestern Greece.

At its peak in the 1930s, the village reached about 600-700 inhabitants, mostly families looking for a piece of fertile land to cultivate and farm in the nearby valley.

Border towns like Parorio were at risk of invading parties from the Balkans to the North, who were looking for any point of entry into Greece and access to its important sea routes.

Following the Civil War, the region saw a mass exodus of people migrating to North America, Australia, and even parts of Africa, where opportunity and a better way of life existed.

Today, the area is sparsely inhabited, but is experiencing a slight rejuvenation in the agriculture industry, as part of a plan funded by the European Union.