Joi is a distinctive girls' name in United States, ranking #2854 in 2010 with 61 recorded births. The name reached its all-time peak in 2001 with 119 births ranking #1564. Since 1996, the popularity has decreased by 19.7%. In 2010, approximately 1 in every 29,137 girls born was named Joi. FALLING Recent data shows the name is currently falling.