Yeah, the wikipedia article addresses this somewhat; The name of the mountain was previously spelt "Mount Kosciusko", an Anglicisation, but the spelling "Mount

Yeah, the wikipedia article addresses this somewhat; The name of the mountain was previously spelt "Mount Kosciusko", an Anglicisation, but the spelling "Mount Kosciuszko" was officially adopted in 1997 by the Geographical Names Board of New South Wales. The traditional English pronunciation of Kosciuszko is /kɒziːˈʌskoʊ/, but the pronunciation /kɒˈʃʊʃkoʊ/ is now sometimes used, which is substantially closer to the Polish pronunciation [kɔɕˈt͡ɕuʂkɔ]