Gwendoline Lindiwe "Gwen" Mahlangu-Nkabinde (born 16 August 1955) is a South African politician who was Speaker of the National Assembly of South Africa from 2008 to 2009. She became Deputy Speaker on 23 April 2004 and was later elected as Speaker on 25 September 2008; in the latter post, she succeeded Baleka Mbete, who was appointed as Deputy President of South Africa, and Mahlangu-Nkabinde was in turn succeeded as Deputy Speaker by former Deputy Health Minister Nozizwe Madlala-Routledge. Following the April 2009 general election, she was replaced as Speaker by Max Sisulu on 6 May 2009.