- Jacaline
- Jacinda
- Jacinth
- Jack
- Jackalyn
- Jacki
- Jackie
- Jacklyn
- Jackson
- Jaclyn
- Jacob
- Jacqueline
- Jacquelyn
- Jacquetta
- Jacquette
- Jacqui
- Jada
- Jade
- Jaden
- Jadyn
- Jaiden
- Jake
- Jakki
- Jalen
- Jamaar
- Jamar
- James
- Jamey
- Jami
- Jamie
- Jamison
- Janae
- Jancis
- Jane
- Janeka
- Janel
- Janele
- Janella
- Janelle
- Janene
- Janessa
- Janet
- Janetta
- Janette
- Janey
- Janice
- Janie
- Janina
- Janine
- Janna
- Jannah
- Jannine
- Jaqueline
- Jaquelyn
- Jared
- Jareth
- Jarod
- Jaron
- Jarred
- Jarrett
- Jarrod
- Jarvis
- Jasmin
- Jasmine
- Jasmyn
- Jason
- Jasper
- Jaxon
- Jay
- Jaycob
- Jayda
- Jayde
- Jayden
- Jaydon
- Jaye
- Jayla
- Jaylee
- Jaylen
- Jaylin
- Jaylon
- Jayme
- Jaymes
- Jayna
- Jayne
- Jaynie
- Jayson
- Jazmin
- Jazmine
- Jeana
- Jeane
- Jeanette
- Jeanie
- Jeanine
- Jeanna
- Jeannie
- Jeannine
- Jeb
- Jed
- Jeff
- Jefferson
- Jeffery
- Jeffrey
- Jeffry
- Jem
- Jemima
- Jemma
- Jemmy
- Jen
- Jena
- Jenae
- Jenelle
- Jenessa
- Jeni
- Jenifer
- Jenn
- Jenna
- Jenni
- Jennie
- Jennifer
- Jenny
- Jep
- Jepson
- Jera
- Jerald
- Jere
- Jeremiah
- Jeremy
- Jeri
- Jericho
- Jermaine
- Jerold
- Jerrard
- Jerri
- Jerrie
- Jerrod
- Jerrold
- Jerry
- Jervis
- Jess
- Jessalyn
- Jessamine
- Jessamyn
- Jesse
- Jessi
- Jessica
- Jessika
- Jessye
- Jethro
- Jetta
- Jewel
- Jewell
- Jill
- Jillian
- Jillie
- Jilly
- Jim
- Jimi
- Jimmie
- Jimmy
- Jinny
- Jo
- Joachim
- Joan
- Joandra
- Joann
- Joanna
- Joanne
- Jobeth
- Joby
- Jocelin
- Jocelyn
- Jocosa
- Jodene
- Jodi
- Jodie
- Jody
- Joe
- Joel
- Joetta
- Joey
- John
- Johnathan
- Johnathon
- Johnie
- Johnnie
- Johnny
- Joi
- Joleen
- Jolene
- Jolyon
- Jonah
- Jonathan
- Jonathon
- Jonelle
- Jonette
- Joni
- Jonie
- Jonny
- Jonquil
- Jonty
- Jools
- Jordan
- Jordana
- Jordon
- Jordyn
- Jorie
- Joscelin
- Josceline
- Joselyn
- Joseph
- Josepha
- Josephina
- Josh
- Joshawa
- Joshua
- Josiah
- Josie
- Joss
- Josslyn
- Joy
- Joyce
- Joye
- Judah
- Judd
- Jude
- Judi
- Judie
- Judith
- Judy
- Julia
- Juliana
- Julianna
- Julianne
- Julie
- Juliet
- Julius
- July
- Julyan
- June
- Junior
- Juniper
- Justice
- Justin
- Justina
- Justine
- Justy
- Justyn