Letta \l(et)-ta\ as a girl's name is a variant of Letitia (Latin), and the meaning of Letta is "joy".
The baby name Letta sounds like Letty, Lotta, Leta, Leota, Leeta and Letha. Other similar baby names are Netta, Betta, Cetta, Detta, Hetta, Yetta, Jetta, Retta and Zetta.