Irish Boy Names Starting with J

2 Irish boy names beginning with J, with what each one means and how to say it.

Updated October 2026

Irish boy names starting with J

James in Irish is Seamus. Say it SHAY-muss.

No. 4 for boys in Ireland in 2025, with 359 baby boys.

JAR-lath

Jarlath is an Irish boy's name after St. Jarlath, a sixth-century saint known for his teaching.

No. 829 for boys in Ireland in 2025, with 3 baby boys.

There are 2 Irish boy names starting with J here. The ones readers look up most are James and Jarlath.