Portia is a distinctive girls' name in United States, ranking #5958 in 2018 with 21 recorded births. The name reached its all-time peak in 2001 with 100 births ranking #1793. Since 1996, the popularity has decreased by 70.0%. In 2018, approximately 1 in every 80,973 girls born was named Portia. STABLE Recent data shows the name is currently stable.