Jancy is a distinctive girls' name in United States, ranking #13172 in 2007 with 8 recorded births. The name reached its all-time peak in 2003 with 11 births ranking #9310. Since 1996, the popularity has increased by 33.3%. In 2007, approximately 1 in every 240,306 girls born was named Jancy. FALLING Recent data shows the name is currently falling.