The Navy Occupation Service Medal was a military award of the United States Navy which was "Awarded to commemorate the services of Navy, Marine Corps and Coast Guard personnel in the occupation of certain territories of the enemies of the United States during World War II"[2] and recognized those personnel who participated in the European and Asian occupation forces during, and following World War II.

The medal was also bestowed to personnel who performed duty in West Berlin between 1945 and 1990.

It depicts Neptune riding a Hippocampus with the words "Occupation Service".

[3] The following geographical duty areas, and time frames of eligibility, qualified a service member to receive the Navy Occupation Service Medal with "Europe" clasp.

[3][6] The "Asia" clasp was authorized for any service performed on shore or on ships in the following geographical duty areas and time frames of eligibility.