Gwennan is a distinctive girls' name in England & Wales, ranking #3035 in 2025 with 8 recorded births. This places Gwennan in the top 40% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 16 births ranking #1788. Since 1996, the popularity has increased by 60.0%. In 2025, approximately 1 in every 31,660 girls born was named Gwennan. FALLING Recent data shows the name is currently falling.