William is a distinctive girls' name in United States, ranking #13115 in 2025 with 7 recorded births. The name reached its all-time peak in 2004 with 111 births ranking #1744. Since 1996, the popularity has decreased by 82.9%. In 2025, approximately 1 in every 229,610 girls born was named William. RISING Recent data shows the name is currently rising.
William is one of the great enduring classics, meaning resolute protector. It feels stable, regal, and endlessly adaptable.
The name spread through medieval Europe and became especially central to English history after the Norman Conquest. Its long life has produced countless nicknames and international forms.