I've never heard an English version either. Both the Chieftans, and the Clancys/Makem in an early LP from the '60s, sing it in Gaelic.

I do know a song about Paddy McGinty's Goat in English, as performed by Anna McGoldrick, and then there's the song about the Darby Ram, but a ram is not a goat, so I guess I can't help much on this.