Lydea is of Scandinavian origin, derived from the Old Norse 'Hlýðr' which means 'sound, noise'. It was likely introduced to other parts of Europe through trade and cultural exchange during the Viking Age. The name Lydea is often associated with music due to its sound-related etymology. Its usage has been recorded sparingly throughout history but it remains unique and distinctive.
The name Lydea experienced a peak in popularity with 11 births in the year 2003. However, it has remained relatively uncommon throughout the period from 1997 to 2016, with an average of about 8 births per year and no consistent increasing or decreasing trend.