Emiliana Perfetti is a character appearing in Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy. She is a rival to Katrielle Layton.
- Her name is strongly hinted to be of Italian origin.
- She often uses Italian phrases when she is speaking, such as "va bene", which translates to "okay."
- However, she has also used the word "non" to mean "no", which is French, not Italian.