Janyce is a distinctive girls' name in United States, ranking #11163 in 2007 with 10 recorded births. The name reached its all-time peak in 2003 with 12 births ranking #8731. Since 1996, the popularity has increased by 66.7%. In 2007, approximately 1 in every 192,245 girls born was named Janyce. FALLING Recent data shows the name is currently falling.