Alethia is a distinctive girls' name in United States, ranking #6672 in 2016 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 2016, approximately 1 in every 98,416 girls born was named Alethia. FALLING Recent data shows the name is currently falling.