Do you know of any commonly mispronounced name or phrase in physics? I know of a few. Many of these are often names in another language, such as French. So many in the English-speaking world, especially here in the US, often tend to pronounce these words the way they are spelled, rather than the way they should be pronounce in their native tongue. Even the popular name of "Einstein" is commonly mispronounced when compared to what it should be in German.
Here is my list that I can think of off the top of my head:
3. Double Chooz.
I may come back later and add more to this list.