Waldo is a distinctive boys' name in United States, ranking #8100 in 2010 with 10 recorded births. The name reached its all-time peak in 1997 with 17 births ranking #4049. Since 1996, the popularity has decreased by 23.1%. In 2010, approximately 1 in every 191,841 boys born was named Waldo. STABLE Recent data shows the name is currently stable.