The Special Service Medal (Vietnamese: Biệt-Công Bội-Tinh) was a decoration of South Vietnam which was issued between the years of 1950 and 1974.

The Special Service Medal was also awarded to members of foreign militaries and was presented frequently to members of the United States Armed Forces during the years of the Vietnam War.

The U.S. military considered the Special Service Medal to be the equivalent of the Bronze Star.

In 1975, with the fall of Saigon, the South Vietnamese military effectively ceased to exist and the Special Service Medal became obsolete.

Today, it is only available by private purchase through military insignia dealers.