Joi is a distinctive girls' name in United States, ranking #1526 in 1997 with 106 recorded births. The name reached its all-time peak in 2001 with 119 births ranking #1564. Since 1996, the popularity has increased by 39.5%. In 1997, approximately 1 in every 16,421 girls born was named Joi. FALLING Recent data shows the name is currently falling.