Đông Bắc (literally "Northeast" from Chinese: 東北; pinyin: Dōngběi) is the region to the north of the Red River Delta in Vietnam, bordering China.

It is called Northeast to distinguish it from the Tây Bắc (Chinese: 西北; pinyin: Xīběi) or "Northwest", but it is actually in the north and northeast of Hanoi, wider than Việt Bắc (Chinese: 越北联区; pinyin: Yuè Běi Lián Qū) or "Northern Vietnam".

The Northeast is limited to the north and east by the Vietnam-China border, while the Southeast overlooks the Gulf of Tonkin.

The northern part junction with Vietnam-China border are the plateau (highland) turns from west to east are: Bắc Hà, Quản Bạ, Đồng Văn.

To the east, from the Gâm River's middle into the sea, which is lower than many mountains arc turned eastward turn from east to west is the Gâm River's anticline, Ngân Sơn-Yên Lạc Bow, Bắc Sơn Massif, Đông Triều Mountain range.