Ashton Kutcher and Mila Kunis -- Reveal Baby's Name ... And Maybe Her Face

Ashton Kutcher and Mila Kunis are announcing their baby girl's name -- Wyatt Isabelle -- but what she looks like remains a bit of a mystery. Maybe.

Ashton revealed the name on his company's website late Thursday, saying ... "Mila and I would like to welcome Wyatt Isabelle Kutcher to the world." But then he added a game ... by including 6 baby pics in the post and saying ONE of them is theirs.

Honestly, we think they're all the same baby ... with a couple of exceptions. Check out the gallery of options. We're pretty sure it's NOT the black one. Maybe.