I have tried this and it was refused by the URY officials. My DNI is of the extranjeros variety. I am able to exit ARG with my DNI, but not enter any Mercusor nations with it. I gave all this information in my posts to the original OP.steveinbsas said:Anyway, my question is: Can I go to Uruguay from Argentina using only my Argentine DNI? I have no problem using my passport. I'm just curious.