Alethia is a distinctive girls' name in United States, ranking #6662 in 2010 with 19 recorded births. The name reached its all-time peak in 2012 with 29 births ranking #4840. Since 1996, the popularity has increased by 46.2%. In 2010, approximately 1 in every 93,544 girls born was named Alethia. FALLING Recent data shows the name is currently falling.