Seidy is a distinctive girls' name in United States, ranking #12023 in 2021 with 8 recorded births. The name reached its all-time peak in 2013 with 19 births ranking #6683. Since 1996, the popularity has increased by 33.3%. In 2021, approximately 1 in every 204,964 girls born was named Seidy. RISING Recent data shows the name is currently rising.