Ireland: primary language is English (with Irish as a co-official language) — English is spoken virtually everywhere.
Want the full guide? Get a PDF with practical language tips for Ireland — free.
The primary language in Ireland is English (with Irish as a co-official language).
English is spoken virtually everywhere. English is the primary everyday language — no language barrier to plan for at all.
Learning "hello," "please," "thank you," "excuse me," and "the check please" in the local language goes a long way anywhere, including Ireland — locals consistently appreciate the effort.
It's rarely necessary given how widely English is understood in Ireland, but it doesn't hurt to have one as a backup.