Nereo is a distinctive boys' name in United States, ranking #10065 in 1996 with 5 recorded births. This places Nereo in the bottom 4% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 6 births ranking #9535. In 1996, approximately 1 in every 378,847 boys born was named Nereo. STABLE Recent data shows the name is currently stable.