Shannan is a distinctive girls' name in England & Wales, ranking #683 in 1998 with 35 recorded births. The name reached its all-time peak in 1997 with 42 births ranking #604. Since 1996, the popularity has decreased by 14.6%. In 1998, approximately 1 in every 8,262 girls born was named Shannan. FALLING Recent data shows the name is currently falling.