Willian is a distinctive boys' name in United States, ranking #5033 in 2025 with 20 recorded births. The name reached its all-time peak in 2011 with 38 births ranking #3043. Since 1996, the popularity has increased by 33.3%. In 2025, approximately 1 in every 85,404 boys born was named Willian. STABLE Recent data shows the name is currently stable.