Shannyn is a distinctive girls' name in United States, ranking #4369 in 2002 with 29 recorded births. This places Shannyn in the top 24% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 29 births ranking #4369. Since 1996, the popularity has increased by 107.1%. In 2002, approximately 1 in every 61,959 girls born was named Shannyn. FALLING Recent data shows the name is currently falling.