Marlo is a distinctive girls' name in United States, ranking #1839 in 2025 with 109 recorded births. The name reached its all-time peak in 2022 with 122 births ranking #1716. Since 1996, the popularity has increased by 194.6%. In 2025, approximately 1 in every 14,746 girls born was named Marlo. STABLE Recent data shows the name is currently stable.