Dianne Kohler Barnard is a South African politician and former journalist, and a Member of Parliament for the Democratic Alliance (DA).
In October 2015 she was expelled from the party by the DA Federal Executive.
In December 2015 the decision was lifted on appeal to the DA's Federal Legal Commission.She was born in Port Elizabeth, and currently resides in KwaZulu-Natal, where she represents the Durban South constituency.