Alethia is a distinctive girls' name in United States, ranking #6989 in 2015 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 2015, approximately 1 in every 104,980 girls born was named Alethia. FALLING Recent data shows the name is currently falling.