English Meaning: The name Hertha is an English baby name. In English the meaning of the name Hertha is: Of the earth. German Meaning: The name Hertha is a German baby name. In German the meaning of the name Hertha is: Of the earth.American Meaning: The name Hertha is an American baby name.In American the meaning of the name Hertha is: Of the earth.he name Hertha is an English baby name. In English the meaning of the name Hertha is: Of the earth. German Meaning: The name Hertha is a German baby name.