Willian is a distinctive boys' name in United States, ranking #4408 in 2004 with 20 recorded births. This places Willian in the top 33% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 38 births ranking #3043. Since 1996, the popularity has increased by 33.3%. In 2004, approximately 1 in every 99,240 boys born was named Willian. STABLE Recent data shows the name is currently stable.