Joi is a distinctive girls' name in United States, ranking #2180 in 2015 with 87 recorded births. The name reached its all-time peak in 2001 with 119 births ranking #1564. Since 1996, the popularity has increased by 14.5%. In 2015, approximately 1 in every 20,513 girls born was named Joi. FALLING Recent data shows the name is currently falling.