Ireneo is of Latin origin, derived from the word 'irenicus', which means peaceful. It is a masculine given name that was particularly popular during the Middle Ages, often bestowed upon children in honor of Saint Ireneus, an early Christian theologian and martyr. The name Ireneo is associated with tranquility and harmony, reflecting its roots in Latin. In some languages, such as Spanish, it may be used interchangeably with the female form, Irene. However, in English-speaking countries, Ireneo is typically considered a male name.
The name Ireneo experienced periods of popularity with five births each in 1931 and 1971, and another peak around 1980 with six births that year. However, there was a slight dip in usage in 1991 with only five births recorded. Overall, the name Ireneo has been chosen for a total of twenty-one babies across these four years.