Irene of Hungary (Greek: Είρήνη, born Piroska;[1] 1088 – 13 August 1134) was the Byzantine empress by marriage to John II Komnenos.

The name Piroska was a Hungarian derivation of the Latin name Prisca, literally meaning 'ancient', but implying 'serious' or 'grave' behaviour.

Following her conversion to the Eastern Orthodox Church and settlement in Constantinople, Piroska was renamed Irene.

She was, with her husband, the patron of the construction of the Monastery of Christ Pantokrator (Zeyrek Mosque) in Constantinople.

This monastery contained three churches and a hospital of 5 wards, which was open to people of all social classes.