Boys' names starting with J
136 names, most popular first. Numbers are babies registered in Ireland (CSO).
Given in 2025
- Jack475
- James359
- John164
- Jamie112
- Jude91
- Jacob88
- Joseph86
- Joshua74
- Joey64
- Jake60
- Jayden50
- Jason40
- Jesse38
- Joe34
- Jaxon28
- Jordan27
- Josh25
- Jackson24
- Jonathan21
- Jonah21
- Johnny18
- Jax16
- Jimmy15
- Jay14
- Jim14
- Jasper13
- Julian11
- João11
- Jakub10
- Jan10
- Jerry10
- Jaden10
- Jj10
- Justin9
- Jace9
- Jordi9
- Jeremiah8
- Jeremy8
- Jaxson7
- Jonas7
- Joel6
- José6
- Jenson5
- Josiah5
- John Paul4
- Johan4
- Jensen4
- Julien4
- Jawad4
- Joaquim4
- Joaquin4
- Jordie4
- Jarlath3
- Jayce3
- Jeff3
- Junior3
- Jad3
- Jai3
- Jed3
- Joachim3
- Jem3
- Joud3
Earlier names
Given to at least 3 babies in some year since 1964, but not in 2025.
- Jeffrey
- Jerome
- Jonathon
- Johnathan
- Jody
- Jared
- Johann
- Jayson
- Jon
- Jaiden
- Jamal
- Jakob
- Jokubas
- Julius
- Jordon
- Jeffery
- Jacques
- Juan
- Johnathon
- Jermiah
- Joris
- Jozef
- Jaydon
- Jacek
- Jia
- Jadon
- Jarleth
- Jefferson
- Justas
- Jaydan
- Judah
- Jun
- Janis
- Jaylen
- Jethro
- Josef
- Jakov
- Juliusz
- Jackie
- Jago
- Javier
- Jeremi
- Jonatan
- Jorge
- Joss
- Jospeh
- Jamey
- Jas
- Jaxen
- Jaxx
- Jabir
- Jador
- Jafar
- Jameson
- Jamie-Lee
- Jarlaith
- Jarod
- Jase
- Jeaic
- Jer
- Jerard
- Jericho
- Jermaine
- Jett
- John James
- Johnnie
- Jolan
- Jonathen
- Jonnie
- Josip
- Jubril
- Jun Hao
- Jun Wei
- Jurgen