Eartha \e(a)-rtha, ear-tha\ as a girl's name is pronounced ER-thah. It is of Old English origin, and the meaning of Eartha is "Earth". Used by the Puritans in the 17th century, but rare since. Singer Eartha Kitt. See also Terra and Tierra.

Eartha has 4 variant forms: Erda, Ertha, Herta and Hertha.

Baby names that sound like Eartha are Artha, Aretha, Oretha, Orthia, Warda and Wardia.