Meaning and name origin
Theresita \th(e)-resi-ta, ther(e)-sita\ as a girl's name is of Greek origin, and the meaning of Theresita is "late summer". Theresita is a variant of Theresa (Greek); possibly a Greek place name: the first bearers of this name might have been from the Greek island of Therasia.
Theresita has 1 variant form: Teresita.
Theresita is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).