Willian is a distinctive boys' name in United States, ranking #4389 in 1996 with 15 recorded births. This places Willian in the top 42% 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. In 1996, approximately 1 in every 126,282 boys born was named Willian. STABLE Recent data shows the name is currently stable.