Willliam is a distinctive boys' name in United States, ranking #8845 in 2019 with 9 recorded births. This places Willliam in the bottom 37% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 12 births ranking #6888. Since 1996, the popularity has increased by 50.0%. In 2019, approximately 1 in every 199,262 boys born was named Willliam. FALLING Recent data shows the name is currently falling.