Shannan is a distinctive girls' name in England & Wales, ranking #835 in 2001 with 28 recorded births. The name reached its all-time peak in 1997 with 42 births ranking #604. Since 1996, the popularity has decreased by 31.7%. In 2001, approximately 1 in every 9,571 girls born was named Shannan. FALLING Recent data shows the name is currently falling.