Cleo is a moderately popular girls' name in England & Wales, ranking #129 in 2024 with 376 recorded births. The name reached its all-time peak in 2022 with 383 births ranking #132. Since 1996, the popularity has increased by 974.3%. In 2024, approximately 1 in every 686 girls born was named Cleo. STABLE Recent data shows the name is currently stable.