Meaning and name origin
Chattie \ch(at)-tie\ as a girl's name is of Latin and Old German origin, and the meaning of Chattie is "dear, beloved; free man". Chattie is a variant of Charity (Latin): from the word which originally denoted the Christian's love for his fellow man (Latin "caritas" meaning "generous love", from Latin "carus" meaning "dear"). Also a variant of Charlotte (Old German); French feminine diminutive of Charles: it was very common in the Middle Ages in France to make a pet form of a name by adding -ot on the end.
Chattie is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).