Evanston South is a northern suburb of Adelaide, South Australia in the Town of Gawler. It is on the eastern side of Main North Road on the southern side of Gawler.
The southern part of Evanston South includes the "Smithfield Memorial Park" cemetery, operated by the Adelaide Cemeteries Authority. It also includes the Dalkeith Caravan Park and some light industrial businesses near Main North Road.
The northern part of Evanston South contains Trinity College, Gawler, a residential housing estate developed in the 2010s, and vacant land zoned for future residential development.