Rocio is a distinctive girls' name in United States, ranking #2474 in 2016 with 74 recorded births. The name reached its all-time peak in 1998 with 343 births ranking #673. Since 1996, the popularity has decreased by 77.4%. In 2016, approximately 1 in every 23,939 girls born was named Rocio. FALLING Recent data shows the name is currently falling.