Caja ystyron enw gorau: Lwcus, Weithgar, Sylwgar, Siriol, Anweddol. Cael Caja ystyr enw.
Caja tarddiad enw cyntaf. Variant of Kaja. Cael Caja tarddiad enw cyntaf.
Enwau cyfystyr ar gyfer Caja mewn gwahanol wledydd ac ieithoedd: Aikaterine, Cătălina, Cadi, Caelie, Caileigh, Cailin, Cailyn, Cáit, Caitlín, Caitlin, Caitria, Caitrìona, Caitríona, Cajsa, Caleigh, Caren, Carin, Carina, Carine, Caryn, Catalina, Catarina, Cate, Cateline, Caterina, Catharina, Catharine, Catherin, Catherina, Catherine, Cathleen, Cathrin, Cathrine, Cathryn, Cathy, Cátia, Catina, Cato, Catrin, Catrina, Catrine, Catriona, Cayley, Ecaterina, Eka, Ekaterina, Ekaterine, Iina, Ina, Jekaterina, Kaarina, Käthe, Kadri, Kae, Kaelea, Kaelee, Kaelyn, Kaety, Kaia, Kai, Kaija, Kailee, Kailey, Kailyn, Kaisa, Kaja, Kaj, Kajsa, Kakalina, Kaleigh, Kalena, Kaley, Kalie, Kalyn, Karen, Karena, Kari, Karin, Karina, Karine, Karine, Karyn, Kasia, Kat, Kata, Katalin, Katalinka, Katarína, Katariina, Katarin, Katarina, Katarine, Katarzyna, Kate, Katee, Katelijn, Katelijne, Katell, Katenka, Kateri, Katerina, Kateřina, Kateryna, Katey, Katharina, Katharine, Katharyn, Katherina, Katherine, Katheryn, Katheryne, Kathi, Kathie, Kathleen, Kathrin, Kathrine, Kathryn, Kathy, Kati, Katia, Katica, Katie, Katina, Katinka, Katja, Katka, Kató, Katrė, Katri, Katrien, Katrín, Katriina, Katrijn, Katrin, Katrina, Katrine, Katriona, Katsiaryna, Kattalin, Katy, Katya, Kay, Kaye, Kayla, Kayleah, Kaylee, Kayleen, Kayleigh, Kayley, Kaylie, Kaylin, Kayly, Kaylyn, Kaylynn, Keighley, Kerena, Kit, Kitti, Kitty, Kotryna, Nienke, Nine, Nynke, Riina, Rina, Rini, Riny, Ríona, Tina, Tineke, Triinu, Trijntje, Trina, Yekaterina. Cael Caja mewn ieithoedd eraill.
Mae'r rhan fwyaf o'r enwau cyffredin gyda cyfenw Sida: Antonia, Adaline, Kathrine, Ellen, Hershel, Antónia, Antônia. Cael Enwau sy'n mynd gyda Sida.