Alethia is a distinctive girls' name in United States, ranking #6864 in 2006 with 18 recorded births. The name reached its all-time peak in 2012 with 29 births ranking #4840. Since 1996, the popularity has increased by 38.5%. In 2006, approximately 1 in every 105,615 girls born was named Alethia. FALLING Recent data shows the name is currently falling.