Portia is a distinctive girls' name in United States, ranking #3192 in 2010 with 52 recorded births. The name reached its all-time peak in 2001 with 100 births ranking #1793. Since 1996, the popularity has decreased by 25.7%. In 2010, approximately 1 in every 34,179 girls born was named Portia. STABLE Recent data shows the name is currently stable.