[QUOTE=TheKiltedWonder;473945]
Yep it is. It can refer to a strongly marked accent, particularly that of Irish English. The OED (The Oxford English Dictionary, for those of you rushing to your own dictionaries in order to figure this out) mentions that some assume a connection between the shoes usage and the accent usage "as if ‘the speech of those who wear brogues’, or ‘who call their shoes brogues’;" However the OED notes "but of this there is no evidence."
QUOTE]

One possible origin I've heard for "brogue" as an accent, is something to the effect of "his accent was so heavy it sounded like he had a brogue in his mouth."

I couldn't tell you where I read that, so don't quote me on it.