Willam is a distinctive boys' name in United States, ranking #8889 in 2004 with 8 recorded births. This places Willam in the bottom 33% 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 2004, approximately 1 in every 248,100 boys born was named Willam. FALLING Recent data shows the name is currently falling.