Eilonwy, derived from the Welsh elements 'eili' meaning 'sun' and 'lwn' meaning 'leader', is an uncommon yet captivating female given name of Welsh origin. It was popularized by Lloyd Alexander's fantasy series "The Chronicles of Prydain," where Eilonwy is a spirited princess known for her intelligence, courage, and distinctive laugh. The name has since gained international recognition due to this literary association.
"The name Eilonwy has seen fluctuations in popularity over the years, with a noticeable increase in recent times, going from 5 births each year between 2012 and 2015 to 7 births in 2021."