Emmett
- Full Name: EMH Program AK-4 Diagnostic and Surgical Subroutine
- Also known as: Emmett
- Derived from EMT (SCE Short Story: "Oaths")
- Also known as: Emmett
- Species: EMH Mark IV
- Mark III per "Here There Be Monsters", but inconsistent with Losing the Peace, general dating of EMH versions
- Gender: Male-presenting
- By February 2376: Installed on USS da Vinci (SCE Short Story: "Hard Crash")