Sidnie is a distinctive girls' name in United States, ranking #8184 in 2004 with 14 recorded births. The name reached its all-time peak in 2001 with 27 births ranking #4549. Since 1996, the popularity has decreased by 12.5%. In 2004, approximately 1 in every 131,152 girls born was named Sidnie. STABLE Recent data shows the name is currently stable.