Willem is a distinctive boys' name in United States, ranking #2664 in 2024 with 50 recorded births. This places Willem in the top 19% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 122 births ranking #1208. In 2024, approximately 1 in every 34,306 boys born was named Willem. STABLE Recent data shows the name is currently stable.