Janyce is a distinctive girls' name in United States, ranking #14104 in 2010 with 7 recorded births. The name reached its all-time peak in 2003 with 12 births ranking #8731. Since 1996, the popularity has increased by 16.7%. In 2010, approximately 1 in every 253,904 girls born was named Janyce. FALLING Recent data shows the name is currently falling.