Letty is a pet form of the name Alethea (English).
Letty is also a pet form (English) of the name Laetitia (English and French).
Letty is unusual as a baby name for girls. Its usage peaked modestly in 1932 with 0.005% of baby girls being given the name Letty. Its ranking then was #947. The baby name has since experienced a fall in popularity, and is currently of sporadic use. Among all girl names in its group, Letty was nonetheless the most frequently used in 2018.
† Pronunciation for Letty: L as in "lay (L.EY)" ; EH as in "ebb (EH.B)" ; T as in "tee (T.IY)" ; IY as in "eat (IY.T)"