The terms Dacian included a number of tribes, as was the case also with the Thracians. Each tribe inhabited a certain territory with a citadel as the capital. Twelve Dacians tribes are mentioned by the ancient geographer Claudios Ptolemaios.
Cauci, Caucoense Ciaginsi
Napae, Dacianized Scythian tribe, after whom the city of Napoca is possibly named
Osi were a Dacian tribe, among the enemies of the Romans in the Marcomannic Wars (166-180 AD), according to Julius Capitolinus"
Medieval Ptolemaic map