Diaz is a distinctive boys' name in United States, ranking #11010 in 2006 with 6 recorded births. This places Diaz in the bottom 22% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 12 births ranking #5659. In 2006, approximately 1 in every 342,520 boys born was named Diaz. FALLING Recent data shows the name is currently falling.