Government policy in the Republic of Ireland, particularly at the time of independence from the United Kingdom is/was particularly sensitive to they use of the word British in any context. As a result, it is true that British Isles is not a term that is used officially by state institutions in the Republic (although its prominence in general parlance means that it does creep in to some documentation as a quick search on www.gov.ie will show you...). A minority subsection of the population in Ireland take a negative view on the term "British Isles", based on the same hyper-correction which is a result of misplacing the origin of the term as one relating to British having a meaning of "relationship to the United Kingdom". General parlance in the Republic recognises that British Isles is in fact a geographical term that has no political overtones, and relates to the fact that the majority of the celts that lived in these islands in the period preceding the Roman and Germanic invasions were Britons. Note that in Irish, words related to British are used to refer to "celtic" peoples [Bríotánach = Breton, Breatnach = Welsh] whereas the word for "English" is "Sasanach" (which comes from "Saxon"). The term British Isles is generally not controversial in Ireland [and before you all chime in, I am a died in the wool Republican, Irish, non-British person], save for certain circles which try to be hyper-correct. There is no generalised term that acts as a recognised replacement for the term. Sometimes you hear "Great Britain and Ireland", but this leaves out a number of other islands (Mann, Hebridies etc) or "these islands" which as a turn of phrase avoids the controversy by not being specific at all. I know very few Irish people who have been offended by the term Islas Britanicas to refer to the archipeligo where we come from. On the other hand, call me (and/or any other Irish person) Británico or worse still, as used to be regularly used, Inglés, and you will get a history lesson... In the same vein, do Portuguese people complain about the term Iberian Peninsula? They are not Iberians, but rather Lusitanian in origin. Nobody calls Portuguese people Iberians, but few would say that Portugal is not on the Iberian Peninsula. It is not a dis-similar situation.