Althea is a distinctive girls' name in United States, ranking #1474 in 2021 with 145 recorded births. The name reached its all-time peak in 2022 with 175 births ranking #1342. Since 1996, the popularity has increased by 208.5%. In 2021, approximately 1 in every 11,308 girls born was named Althea. STABLE Recent data shows the name is currently stable.