Confirm the finalized version

[tedmc]

I hope not. That's a correctly worded question. Americans would be more likely to phrase it this way: Do you know who the contact person is?

GoesStation
So you are saying that both versions with different word orders are correct and it is a matter of choice.
How is that possible?
I have seen emsr2d2 make corrections to similar sentences as I last quoted to have the word order reversed.

 

[Matthew Wai]

emsr2d2, a BrE speaker, cannot speak for AmE.

 

[GoesStation]

Do you know who is the contact person? is not typical word order, but it's possible in some contexts.