Koila (Greek: Κοίλα) is a community of the city of Kozani in northern Greece.

It is located 4 km north of the center of the city, between Kozani and the A2 motorway (Egnatia Odos).

It consists of Koila and two other settlements: Nea Kardia and Melissia.

In September, the Center hosts the annual Commercial Exhibition of Kozani.

Many firms from Greece and the other Balkan countries exhibit their products.