It's true, of course....Celtic wedding music is not just for the Irish! Regardless of their heritage, I've had many couples request at least some Celtic music be performed at their wedding, be it at the ceremony or the reception.
Such music is not just the music of Ireland, but is a musical genre also found within the music of Scotland, Wales, England and others---including Brittany---which is in France. And there is certainly no lack of love for the music in the USA and Canada as well. Just look at the success of The Celtic Women!
But since we are specifically talking about wedding music, here are some Celtic-minded ideas for you: