Sidnie is a distinctive girls' name in United States, ranking #17314 in 2007 with 6 recorded births. The name reached its all-time peak in 2001 with 27 births ranking #4549. Since 1996, the popularity has decreased by 62.5%. In 2007, approximately 1 in every 320,408 girls born was named Sidnie. STABLE Recent data shows the name is currently stable.