Sidnee is a distinctive girls' name in United States, ranking #3935 in 2005 with 37 recorded births. The name reached its all-time peak in 1999 with 39 births ranking #3304. Since 1996, the popularity has increased by 32.1%. In 2005, approximately 1 in every 49,938 girls born was named Sidnee. RISING Recent data shows the name is currently rising.