Meaning and name origin
Arletha \a-rle-tha, ar-letha\ as a girl's name is of Greek origin, and the meaning of Arletha is "excellence; righteous". Arletha is a variant of Aretha (Greek): singer Aretha Franklin, the "goddess of soul". Also a variant of Arlene: modern coinage of unclear origin.
Arletha is a somewhat popular first name for females (#3184 out of 4276, Top 74%) but an uncommon surname or last name for all people (2000 U.S. Census).