There are probably a few members here who have kilts in Irish tartans. I seem to recall someone posting pictures of a kilt in County Cavan (House of Edgar) and another person posting a pic of themselves in Antrim County Crest (Marton Mills.)

On the Kilt Page of my website, the kilt pictured under the (5 yard) Knife-Pleated Standard section is the Sligo County Crest tartan (Marton Mills). It's 13 oz. however, as are all of the County Crest and Irish County tartans. Irish National is available in 16 oz. from House of Edgar while Ireland's National is available in 16 oz. from Marton Mills. As Rocky mentioned earlier, 'All Ireland Blue; is available in 16 oz. from D.C. Dalgliesh, as is All Ireland Green, Clodagh, Connacht, Blue Fitzgerald, Fitzpatrick, Lynch, Tara Murphy, O'Brien, O'Neill, Brown Ulster, and Red Ulster.