Carrickfergus Area A was one of the three district electoral areas in Carrickfergus, Northern Ireland which existed from 1973 to 1985. The district elected five members to Carrickfergus Borough Council, and formed part of the South Antrim constituencies for the Northern Ireland Assembly and UK Parliament.
It was created for the 1973 local elections, and contained the wards of Knockagh, Lower Greenisland, Middle Greenisland, Trooperslane and Woodburn. It was abolished for the 1985 local elections and replaced by the Knockagh Monument DEA.