Portia is a distinctive girls' name in United States, ranking #4812 in 2016 with 29 recorded births. The name reached its all-time peak in 2001 with 100 births ranking #1793. Since 1996, the popularity has decreased by 58.6%. In 2016, approximately 1 in every 61,086 girls born was named Portia. STABLE Recent data shows the name is currently stable.