Lee Miller Emile Morin (born September 9, 1952) is a United States Navy Captain and NASA astronaut.

He joined the crew of the submarine USS Henry M. Jackson at the Electric Boat Company Shipyards in Groton.

He remained aboard as Medical Officer for both Blue and Gold crews until 1985 when the ship arrived at its home port in Bangor, Washington.

Morin then entered Flight Surgeon training at the Naval Aerospace Medical Institute (NAMI) in Pensacola, Florida.

He remained in the Naval Reserve, and drilled with the United States Marine Corps' 3rd Force Reconnaissance Company in Mobile, Alabama.

In August 1990, he was recalled to active duty during Operation Desert Shield, when he was assigned to Branch Clinic, Naval Air Station Pensacola as a Flight Surgeon.

Morin volunteered to reenter active duty, and was assigned to Administrative Support Unit, Bahrain, as Diving Medical Officer/Flight Surgeon during Operation Desert Storm and during the post-war build-down period.

He was named the Director of Warfare Specialty Programs when NAMI became Naval Aerospace and Operational Medical Institute (NAOMI).