NameDays in USA throughout October showcase a rich diversity of names, often featuring multiple variations on a single day. October 11 stands out with 14 forms related to Ken, Kendall, and Kimberly, while October 17 similarly includes 14 variations of Brad and Rudolph. Other notable days feature extensive lists for Daniel on October 10 and Terence/Tracy on October 15. The month also includes unique names like Remus, Minerva, and Cordelia, alongside more classic choices such as Christopher, Edward, and Joseph. This collection presents a broad spectrum of naming traditions, from classic to contemporary.
| Country | Day | Month | Names |
 USA | 1 | October | Carter, Rea, Remington, Remus, Remi, Remy, Rhea, Rhiannon |
| USA | 2 | October | Ackerley, Ackley, Adair, Forest, Forester, Forrest, Foster, Elwood |
| USA | 3 | October | Erskine, Esmond, India, Kali, Kallie, Kelvin |
| USA | 4 | October | Damara, Damaris, Berenice, Bernice, Bonita, Bonnie, Bunny, Fannie, Fanny, Frances, Francesca, Francesco, Francine, Francis, Francisco, Frank, Frankie |
| USA | 5 | October | Chester, Cheston, Chet, Nia, Nyah |
| USA | 6 | October | Bron, Bronson, Brown, Bruno, Burnet, Burnett |
| USA | 7 | October | Minerva, Miranda, Sargent, Sergeant, Sergio |
| USA | 8 | October | Demetrius, Demetria, Demetrio, Demi, Dimitri, Stewart, Stuart |
| USA | 9 | October | Denice, Denis, Denise, Dennis, Denny, Dion, Gunnar, Gunther, Leif |
| USA | 10 | October | Dan, Dana, Dane, Danica, Daniel, Daniela, Daniella, Danielle, Danny |
| USA | 11 | October | Canice, Kambelyn, Ken, Kendall, Kendra, Kennedy, Kenneth, Kenny, Kent, Kenton, Kim, Kimball, Kimberley, Kimberly, Kimberlyn, Kimi, Tate, Tatum |
| USA | 12 | October | Christopher, Cristopher, Kester, Kristofer, Kristopher |
| USA | 13 | October | Eddie, Eddy, Eduardo, Edward, Edwardine, Ned |
| USA | 14 | October | Calista, Dwight, Fortino, Fortuna, Glennis, Glynnis |
| USA | 15 | October | Essence, Terence, Teresa, Terrance, Terrence, Terri, Terry, Tess, Tessa, Theresa, Trace, Tracey, Traci, Tracy |
| USA | 16 | October | Avice, Avis, Gerar, Gerard, Gerardo, Gerrard, Hedda, Hedwig, Hedy, Heide, Heidi, Jerard, Noah, Noe |
| USA | 17 | October | Brad, Braden, Bradford, Bradley, Brady, Braeden, Brayden, Braydon, Rodolfo, Rudi, Rudolf, Rudolph, Rudolphine, Rudy |
| USA | 18 | October | Blaine, Blair, Blane, Luca, Lucas, Lukas, Luke, Wynn, Wynton |
| USA | 19 | October | Cleo, Cleon, Cleopatra, Howard, Howie |
| USA | 20 | October | Acca, Accalia, Deon, Deondre, Deonte, Hobson, Hogan |
| USA | 21 | October | Celina, Celine, Nobel, Selena, Selina, Ursula, Wanda, Wendall, Wendell, Wendy |
| USA | 22 | October | Cordelia, Cordell, Cordella, Delia, Delilah |
| USA | 23 | October | Fifi, Josefina, Josepha, Josephina, Josephine, Josie, Pepita |
| USA | 24 | October | Denver, Rafael, Rafaela, Raphael, Raphaela |
| USA | 25 | October | Denzel, Crispin, Crispina, Gavin, Gawen |
| USA | 26 | October | Madden, Maddock, Maddox, Mahala, Mahalia, Makenna, Mckenna |
| USA | 27 | October | Cale, Caleb, Feodor, Isaac, Isaak, Issac, Izaac, Kaleb, Ted, Teddy, Teodor, Theodora, Theodore |
| USA | 28 | October | Dayanara, Eunice, Jonah, Jonas, Jude, Liberty, Simeon, Simon, Simone, Thad, Thaddea, Thaddeus |
| USA | 29 | October | Garrison, Cyrano, Cyrena, Narcissa, Narcissus |
| USA | 30 | October | Arilda, Xena, Xenia, Ximena, Zena, Zenas, Zenia, Zeno, Zenobia |
| USA | 31 | October | Cruz, Flint, Flynn, Kruz, Trent, Trenton |
