The Battle on the Irpin River is a semi-legendary battle between the armies of the Grand Duchy of Lithuania and Principality of Kiev.

According to the story, Gediminas, the Grand Duke of Lithuania, conquered Volhynia before turning his attention to Kiev. He was opposed by Prince Stanislav of Kiev allied with the Principality of Pereyaslavl and Bryansk.

Lithuanians achieved a great victory and extended their influence to Kiev.

There are no contemporary sources that attest to the battle

It is known only from late and generally unreliable Lithuanian Chronicles.

Therefore, historians disagree whether it was an actual battle in the early 1320s or a fictional story invented by later scribes.

Lithuanians will gain full control of the city only in 1362 after the Battle of Blue Waters against the Golden Horde.