What does Alethea mean?
A learned coinage, not found before the 16th century. Mythology: goddess of truth. See also Althea.
Affiliated girl name: Olethea.more]
How popular is Alethea?
Alethea is a very popular first name for females (#2022 out of 4276, Top 47%) but a unique last name for both adults and children. (2000 U.S. Census)
Displayed below is an analysis of the usage of the girl name Alethea and related names. Aleta, Aletha, Altha, Althea and Thea (#776 2 years ago) are the popular varying forms of Alethea (outside Top 1000) appearing in the Top 1000. Usage of these forms of Alethea was well-received during 1880-1889 (average #720) and is somewhat less today (#955, down 84%). Althea is the steady favorite, though Thea is currently more regularly used, while Aleta, Aletha, Altha and Althea are now somewhat dated. (2014 Birth Statistics)