Beruniy (Uzbek: Beruniy/Беруний; Karakalpak: Biruniy/Бируний; Russian: Беруни) is a city in the autonomous republic of Karakalpakstan, Uzbekistan.

[2] Historically, Beruniy was known as Kath (Persian/Arabic: کاث; modern Uzbek: Kos)[3] and served as the capital of Khwarazm during the Afrighid dynasty.

In 1957, it was renamed "Beruniy" in honor of the medieval scholar and polymath Al-Biruni who was born here.

In 1957, it was renamed Beruniy in honor of the scholar and polymath Abū Rayḥān al-Bīrūnī who was born and raised in the town.

Beruniy is located on the northern bank of the Amu Darya near Uzbekistan's border with Turkmenistan.