Q: Passage: Ngo (Vietnamese pronunciation: ( o) ) is a Vietnamese surname, related to the Chinese surnames Ng and Wu.

Question: Based on this passage, where does the last name ngo come from?
Let's give stream of consciousness below
To answer the above question, the relevant sentence is: Ngo (Vietnamese pronunciation: ( o) ) is a Vietnamese surname, related to the Chinese surnames Ng and Wu. So the answer is Vietnamese.