Not that I've ever seen, and I have seen plenty in my days (years) of playing football.
Some of the items of training wear may have sponsors names on them, but the replica shirt itself (ie the home and away kits wore in international matches) should be free of advertising.
Ring umbro, they make the shirts and emblazon them. Toplion sports in ballymount I believe is the place. Dunno whether they'll sell you one without the logo but worth a try.