Shannan is a distinctive boys' name in United States, ranking #11339 in 1999 with 5 recorded births. This places Shannan in the bottom 2% 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 5 births ranking #11339. In 1999, approximately 1 in every 384,017 boys born was named Shannan. STABLE Recent data shows the name is currently stable.