The Orlanka or Orlanka River, in eastern Poland, is a tributary of the Narew River.

The Orlanka flows through the geographical region of Europe known as the Wysoczyzny Podlasko – Białoruskie (English: Podlaskie and Belarus Plateau) located in the Podlaskie Voivodeship of Poland.

The drainage area is contained within the mezoregion known as the Równina Bielska (English: Bielsk Plain).

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