Alethia is a distinctive girls' name in United States, ranking #6334 in 2001 with 17 recorded births. The name reached its all-time peak in 2012 with 29 births ranking #4840. Since 1996, the popularity has increased by 30.8%. In 2001, approximately 1 in every 105,915 girls born was named Alethia. FALLING Recent data shows the name is currently falling.