Retha tikanga ingoa pai: Hou, Tahuri, Ohaoha, Kaha, Nui. Haere Retha tikanga o te ingoa.
Retha takenga o te ingoa tuatahi. Short form of Margaretha. Haere Retha takenga o te ingoa tuatahi.
Ingoa faaauhia hoki Retha i roto i whenua rerekē me ngā reo: 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. Haere Retha i ētahi atu reo.
Ingoa whānau te nuinga noa ki te ingoa Retha: Kimmick, Worsfold, Lapham, Aceto, Werling. Haere Rārangi o ngā ingoa whānau ki te ingoa Retha.
Te nuinga ingoa noa ki te ingoa whakamutunga Oeler: Mabel, Ailene, Chong, Cassi, Douglass. Haere Ingoa e haere ki Oeler.