Sidnee is a distinctive girls' name in United States, ranking #3304 in 1999 with 39 recorded births. The name reached its all-time peak in 1999 with 39 births ranking #3304. Since 1996, the popularity has increased by 39.3%. In 1999, approximately 1 in every 45,482 girls born was named Sidnee. RISING Recent data shows the name is currently rising.