The Dacians are an Indo-European people, very close or part of the Thracians.

Dacians are the ancient inhabitants of Dacia (located in the area in and around the Carpathian Mountains and east of there to the Black Sea).

This area includes the present-day countries of Romania and Moldova, as well as parts of Sarmatia (mostly in eastern Ukraine), Moesia (Eastern Serbia, Northern Bulgaria), Slovakia and Poland.

They spoke the Dacian language, believed to have been closely related to Thracian, but were culturally influenced by the neighboring Scythians and by the Celtic invaders of the 4th century BCE.