Kleo is a distinctive girls' name in England & Wales, ranking #2605 in 2025 with 10 recorded births. This places Kleo in the top 34% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2023 with 22 births ranking #1410. In 2025, approximately 1 in every 25,328 girls born was named Kleo. FALLING Recent data shows the name is currently falling.