Sidnee is a distinctive girls' name in United States, ranking #3419 in 1998 with 36 recorded births. The name reached its all-time peak in 1999 with 39 births ranking #3304. Since 1996, the popularity has increased by 28.6%. In 1998, approximately 1 in every 49,080 girls born was named Sidnee. RISING Recent data shows the name is currently rising.