Reatha \re(a)-tha\ as a girl's name is a variant of Aretha (Greek), and the meaning of Reatha is "excellence; righteous".

The baby name Reatha sounds like Retha, Radha, Reta, Reeta, Retta and Reita. Other similar baby names are Bertha, Betha, Katha, Catha, Hertha, Heath, Keitha, Letha, Leitha, Matha and Reanna.