Althea is a distinctive girls' name in United States, ranking #1644 in 2015 with 130 recorded births. The name reached its all-time peak in 2022 with 175 births ranking #1342. Since 1996, the popularity has increased by 176.6%. In 2015, approximately 1 in every 13,728 girls born was named Althea. STABLE Recent data shows the name is currently stable.