Albert Bastiaan "Ab" Harrewijn (22 November 1954 – 13 May 2002) was a Dutch politician who was a member of the House of Representatives and chairman of the GroenLinks party.
He was strongly committed to helping people in the lowest ranks of society: the homeless, social security claimants and addicts.
As GreenLeft defence spokesperson, he was a member of the temporary committee on decision-making procedures for military operations.
The Leftwing Cheek, the GreenLeft platform for religion and politics, instituted an Ab Harrewijn Prize in his honour, for creative, small initiatives for people in the lowest ranks of society.
This was based on an initiative of Harrewijn and fellow GreenLeft MP Paul Rosenmöller, which seeks to inform works councils of the salaries of the top levels of management and its Board of directors.