Effy is a distinctive girls' name in England & Wales, ranking #832 in 2023 with 43 recorded births. This places Effy in the top 11% of ranked UK girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2021 with 44 births ranking #812. In 2023, approximately 1 in every 5,967 girls born was named Effy. STABLE Recent data shows the name is currently stable.