Willam is a distinctive boys' name in United States, ranking #10709 in 2012 with 7 recorded births. This places Willam in the bottom 25% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 12 births ranking #6072. In 2012, approximately 1 in every 270,946 boys born was named Willam. FALLING Recent data shows the name is currently falling.