The only pub I know with it's own whiskey is Henry Downes[/url:21ylcvyb] in Waterford. They don't make it anymore but they still have the bottles. I hear it's expensive stuff. I don't drink whiskey so never had it. They do an eclectic selection of beers in there.
It's a pretty eccentric pub anyway. My mates band once played in a room in there that I'm pretty sure is/was the house sitting room.