Alethia is a distinctive girls' name in United States, ranking #6103 in 2009 with 22 recorded births. The name reached its all-time peak in 2012 with 29 births ranking #4840. Since 1996, the popularity has increased by 69.2%. In 2009, approximately 1 in every 83,494 girls born was named Alethia. FALLING Recent data shows the name is currently falling.