| Country | Day | Month | Names |
 USA | 1 | September | Debbie, Deborah, Debra, Edgar, Edgardo, Giles, Josh, Joshua, Josue, Ruth |
| USA | 2 | September | Brock, Brook, Brooke, Brooklyn, Brooklynn, Brooks, Cassidy, Cassie, Castor, Kassidy, Kassie |
| USA | 3 | September | Page, Paige, Phebe, Phoebe, Phoebus |
| USA | 4 | September | Becky, Erin, Erina, Ida, Idalia, Moe, Moises, Moses, Moss, Reba, Rebecca, Rebekah |
| USA | 5 | September | Bert, Bertha, Bertie, Bertin, Berton, Burt, Burton, Rigoberto |
| USA | 6 | September | Bartram, Bertram, Nasir, Veda, Yahir |
| USA | 7 | September | Raegan, Raina, Rana, Rani, Reagan, Regan, Regina, Regine, Yale |
| USA | 8 | September | Adria, Adrian, Adriana, Adrianna, Adrien, Adrienne, Hadria, Hadrian, Hadrien, Joachim, Joakima, Joaquin, Joaquina |
| USA | 9 | September | Jada, Jade, Jadee, Jaden, Jadon, Jadyn, Jaiden, Jayda, Jayden, Jaydon |
| USA | 10 | September | Anabel, Annabel, Annabella, Annabelle, Arnie, Arnold, Arnolda, Arnoldo, Pulcheria |
| USA | 11 | September | Patriot Day |
| USA | 12 | September | Aloise, Aloysia, Guido, Guy |
| USA | 13 | September | Arlando, Milton, Orlando, Roland, Rolanda, Rolando, Stone, Stoney |
| USA | 14 | September | Keisha, Lakeisha, Latasha, LaTease, Latisha, Leticia, Letitia, Letty, Tish, Tisha |
| USA | 15 | September | Delora, Delores, Dolores, Lola, Lolita |
| USA | 16 | September | Cornelia, Cornelius, Cornell, Edith, Nila, Nyla |
| USA | 17 | September | Ariadne, Ariana, Arianna, Hildegard, Hildegarde, Lambert, Lambertine |
| USA | 18 | September | Clint, Clinton, Corbin, Corwin, Corwyn, Korbin, Korvin |
| USA | 19 | September | Monroe, Morgan, Morgann, Morganna, Morganne, Precious, Sawyer |
| USA | 20 | September | Eustace, Eustacia, Hailee, Hailey, Haleigh, Haley, Halie, Halle, Hallie, Haylee, Hayley |
| USA | 21 | September | Maira, Maura, Maureen, Mayra, Mira, Moira, Moreen, Morena, Myra, Norna |
| USA | 22 | September | Druce, Drucilla, Maurice, Mauricio, Maury, Merrick, Morell, Morris, Morrison, Murray |
| USA | 23 | September | Autumn, Linnette, Linnet, Lynette, Lynn, Lynne |
| USA | 24 | September | Eartha, Ertha, Herta, Hertha, Mercedes, Mercy, Scot, Scott, Scottie, Scotty |
| USA | 25 | September | Barrie, Barry, Braxton, Moriah |
| USA | 26 | September | Newton, Renata, Renault, Rene, Renee, Renny |
| USA | 27 | September | Cosima, Cosimo, Cosmo, Damian, Damiana, Damien, Damion, Damon |
| USA | 28 | September | Baruch, Preston, Prior, Pryor, Wenzel |
| USA | 29 | September | Carmichael, Mia, Micaela, Micah, Michael, Michaela, Micheal, Michele, Micheline, Michelle, Mickey, Miguel, Mikaela, Mikala, Mikayla, Mike, Mikel, Mitch, Mitchel, Mitchell |
| USA | 30 | September | Jerome, Jeronima, Gerome, Geromino |
