Londonderry Area B, called Derry Area B from 1984, was one of the five district electoral areas in Derry, Northern Ireland which existed from 1973 to 1985. The district elected five members to Londonderry City Council, and formed part of the Londonderry constituencies for the Northern Ireland Assembly and UK Parliament.
It was created for the 1973 local elections, and contained the wards of Altnagelvin, Caw, Clondermot, Ebrington and Victoria. It was abolished for the 1985 local elections and replaced by the Waterside DEA.