What does Alethea mean?
Alethea \a-le-thea\ as a girls' name is pronounced ah-LEE-thee-ah. It is of Greek origin, and the meaning of Alethea is "verity, truth". A learned coinage, not found before the 16th century. Mythology: goddess of truth. See also Althea.
For more information, see also the related girl name Olethea.
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 the previous year) are the popular varying forms of Alethea (#unlisted) appearing in the Top 1000. Usage of these girl names reached its most widespread during 1880-1889 (usage of 0.28%) and has become much lower since (usage 0.0448%, down 84%), with the versions Aleta, Aletha, Altha and Althea becoming less trendy. Thea (#776) is the most fashionable girl name in this compilation, and there is also a resurgence in birth name usage for this name. (2014 Birth Statistics)