Gelsey is a distinctive girls' name in United States, ranking #7884 in 1999 with 12 recorded births. The name reached its all-time peak in 2002 with 19 births ranking #5968. Since 1996, the popularity has decreased by 33.3%. In 1999, approximately 1 in every 147,815 girls born was named Gelsey. FALLING Recent data shows the name is currently falling.