Portia is a distinctive girls' name in United States, ranking #1825 in 2000 with 95 recorded births. The name reached its all-time peak in 2001 with 100 births ranking #1793. Since 1996, the popularity has increased by 35.7%. In 2000, approximately 1 in every 19,115 girls born was named Portia. STABLE Recent data shows the name is currently stable.