Moustache or mustache? Both spellings refer to the same facial hair growing above the upper lip. However, which one is correct? The answer is: It depends on where you are! While mustache is the preferred spelling in the United States, moustache is the preferred spelling in other English-speaking countries, including the United Kingdom, Canada, and Australia.
The difference in spelling is not just a matter of regional preference. The word has an interesting etymology that sheds light on why it is spelled differently.
