Alethia is a distinctive girls' name in United States, ranking #6327 in 2007 with 21 recorded births. The name reached its all-time peak in 2012 with 29 births ranking #4840. Since 1996, the popularity has increased by 61.5%. In 2007, approximately 1 in every 91,545 girls born was named Alethia. FALLING Recent data shows the name is currently falling.