Retha merkilegu heiti: Nútíma, Gaum, Örlátur, Virk, Alvarlegt. Fá Retha merking nafns.
Retha Uppruni fornafns. Short form of Margaretha. Fá Retha Uppruni fornafns.
Samheiti fyrir Retha í mismunandi löndum og tungumálum: Gosia, Greet, Gréta, Greetje, Greta, Gretchen, Grete, Gretel, Grethe, Griet, Märta, Maarit, Maighread, Mairead, Mairéad, Maisie, Małgorzata, Małgosia, Mared, Maret, Margaid, Margalit, Margalita, Margaréta, Margareeta, Margareta, Margarete, Margaretha, Margarethe, Margarid, Margarida, Margarit, Margarita, Margaux, Marged, Margherita, Margit, Margita, Margot, Margrét, Margreet, Margrete, Margrethe, Margriet, Margrit, Marguerite, Marit, Marita, Marjeta, Markéta, Marketta, Marsaili, Marzena, Meggy, Mererid, Merete, Merit, Meta, Mette, Mysie, Reeta, Reetta, Rita. Fá Retha á öðrum tungumálum.
Algengustu eftirnöfnin með nafni Retha: Cervone, Shadburn, Dahman, Fenley, Segel. Fá Listi yfir eftirnöfn með nafni Retha.
Algengustu nöfnin með eftirnafninu Smithwick: Carrie, Terina, Marie, Morris, Val. Fá Nöfn sem fara með Smithwick.