The Parni, Aparni or Parnians were an East Iranian people who lived around the Ochus (Tejen) River, southeast of the Caspian Sea. It is believed that their original homeland may have been what is now southern Russia, from where they emigrated with other Scythian tribes. The Parni were one of the three tribes of the Dahae confederacy.

The Dahae, also known as the Daae, Dahas or Dahaeans were an ancient Eastern Iranian nomadic tribal confederation, who inhabited the steppes of Central Asia.