The Brodnici (or Brodniks) are a 13th-century people whose ethnicity is uncertain, as various authors suggest they were Romanian, Slavic, mixed Romanian-Jassic, Romanian-Slavic,or Turkic-Slavic population, probably vassals of Galicia or Cumans for a period.

Brodnici does not leave any provable material or written traces, which makes their identification difficult.

The only known contemporary ethnical description of Brodnici ("Bordinians") is by Byzantian chronicler Niketas Choniates in his History, who describes them as a branch of "Tauroscythians," and this term he seems to apply to the Rus people drawing a distinction of them from Turkic Polovtsians and from Vlachs.