| Agency Name: | General Department of Defence Intelligence |
| Nativename: | Vietnamese: Tổng cục Tình báo Quốc phòng |
| Nativename A: | Tổng cục II |
| Seal: | Tổng cục Tình báo Quốc phòng.jpg |
| Preceding1: | Military Intelligence Division (1946-1947; 1957-1995) |
| Preceding2: | Intelligence Agency (1947-1950) |
| Preceding3: | Communication Department (1951-1957) |
| Parent Department: | CPV Central Military Commission |
| Parent Agency: | SRV Ministry of National Defence |
| Jurisdiction: | Vietnam Ministry of National Defence |
| Headquarters: | Bắc Từ Liêm District, Hanoi |
| Employees: | ~25.000 |
| Budget: | Classified |
| Chief1 Name: | Phạm Ngọc Hùng |
| Chief1 Position: | director general |
| Chief2 Name: | Lê Quang Minh |
| Chief2 Position: | Commissar |
| Chief3 Name: | Đặng Vũ Chính |
| Chief3 Position: | 1st Deputy Director |
The General Department of Defence Intelligence (GDDI;, sometimes,),[1] also recognized by its internal designation General Department II or TC2,[2] is a strategic military intelligence agency of Vietnam, serving the Vietnam People's Army and practically the biggest existing intelligence agency under the Vietnamese government.