Iria is of Irish origin, derived from the Irish word 'iothra', meaning 'peace'. It was traditionally used as a female given name in Ireland during the Middle Ages. The name Iria is also associated with ancient cities and regions in Spain, such as the historic city of A Coruña in Galicia, known as Iria Flavia in Roman times.
"The name Iria saw its first recorded usage in 1921 with five births that year. There was another spike in popularity in 1927, also with five births. Overall, over these two years, there were a total of ten children named Iria."