Decembra Vārdadienas ASV piedāvā daudzveidīgu vārdu klāstu, bieži vien uzrādot vairākas pareizrakstības variācijas vienam pamata vārdam. Daudzi datumi, piemēram, 6. un 26. decembris, ir veltīti plašām vārdu saimēm, kā Nikolass un Stefans. Parādās arī populāras izvēles, piemēram, Emīlija, Ava un Deivids, līdzās unikālākām izvēlēm, piemēram, Pandora un Storms. Sarakstos redzams tradicionālo un moderno vārdu apvienojums, nodrošinot plašu pievilcību. Šis visaptverošais apkopojums izceļ bagātīgo lingvistisko daudzveidību, kas tiek svinēta visa mēneša garumā.
| Valsts | diena | Mēnesis | Vārdi |
 ASV | 1 | decembris | Bianca, Blanca, Blanche, Eli, Ely, Sherwin |
| ASV | 2 | decembris | Tayler, Taylor, Todd, Vita, Vivian, Viviana |
| ASV | 3 | decembris | Javier, Malcolm, Malcom, Malik, Xavier, Xaviera |
| ASV | 4 | decembris | Ada, Adah, Adina, Aida, Babette, Barbara, Barbie, Barbra, Osman, Osmond |
| ASV | 5 | decembris | Pandora, Sabas, Savas, Wallace, Wally, Walt, Walter |
| ASV | 6 | decembris | Claus, Ira, Nicholas, Nichole, Nick, Nicklaus, Nickolas, Nico, Nicolas, Nicole, Nicolette, Nikki, Niko, Nikolas |
| ASV | 7 | decembris | Ambrose, Ambrosine, Jasmin, Jasmine, Jazlyn, Jazmin, Jazmine, Yasmeen, Yasmin, Yasmine, Yazmin |
| ASV | 8 | decembris | Rohan, Spence, Spencer, Spenser |
| ASV | 9 | decembris | Delfina, Delfino, Delphina, Kirby, Kirk, Kirkwood |
| ASV | 10 | decembris | Emely, Emilee, Emilia, Emilie, Emily, Eula, Eulalia, Ula |
| ASV | 11 | decembris | Art, Arthur, Arthurine, Arturo, Javon, Jevon, Sage |
| ASV | 12 | decembris | Finley, Finn, Fiona, Guadalupe, Lupe, Lupita, Mekhi |
| ASV | 13 | decembris | Cinderella, Cindy, Cynth, Cynthia |
| ASV | 14 | decembris | Boyd, Boyden, Byrd, Horace |
| ASV | 15 | decembris | Adlai, Adler, Carney, Mirella, Mireya, Tanner |
| ASV | 16 | decembris | Addie, Addy, Adela, Adelaide, Adele, Adeline, Adella, Adelle, Alena, Alina, Aline, Della |
| ASV | 17 | decembris | Eleazar, Lazar, Lazaro, Lazarus, Olympia, Orval, Orville, Storm, Stormie, Stormy, Wilbert, Wilberta, Wilbur |
| ASV | 18 | decembris | Griffin, Griffith, Ruff, Rufina, Rufus, Russ, Russell, Rusti, Rusty, Ty, Tyrus |
| ASV | 19 | decembris | Daria, Darian, Darien, Dario, Darion, Darius, Haysten |
| ASV | 20 | decembris | Ammon, Roxana, Roxanne, Roxie |
| ASV | 21 | decembris | Estella, Estelle, Ester, Esther, Star, Stella, Van, Vance, Vanesa, Vaness, Vanna |
| ASV | 22 | decembris | Asta, Astrid, Trista, Tristan, Tristen, Tristin, Triston |
| ASV | 23 | decembris | Hart, Hartman, Latoya, Wade |
| ASV | 24 | decembris | Adan, Adana, Adam, Adamina, Addison, Ava, Eva, Eve, Evelyn |
| ASV | 25 | decembris | Anastasia, Noel, Noelle, Hollie, Holly, Jesus, Stacey, Stacie, Stacy |
| ASV | 26 | decembris | Esteban, Estefania, Estefany, Estevan, Stefan, Stefanie, Stephan, Stephanie, Stephany, Stephen, Steve, Steven, Stevie |
| ASV | 27 | decembris | Adwin, Alvern, Alverna, Alvin, Alvina, Alwin, Elvin, Elvina, Elvira, Elvita, Elwin |
| ASV | 28 | decembris | Aspen, Caspar, Gaspar, Innocent, Jasper, Kasper, Woodrow, Woody |
| ASV | 29 | decembris | Dave, David, Davida, Davion, Davis, Davy, Dawson, Dayton, Jess, Jesse, Jessie, Jessica, Jessy, Vida |
| ASV | 30 | decembris | Ainsley, Kelsa, Kelsey, Kelsi, Kelsie, Mason |
| ASV | 31 | decembris | Malone, Melania, Melanie, Melany, Silas, Silvester, Sylvester |
