Dame Susan Gwynfa Mary Glazebrook, DNZM (born 8 February 1956), is a judge of the Supreme Court of New Zealand.
Glazebrook has an MA (1st Class Hons), an LLB (Hons) and a DipBus (Finance) from the University of Auckland and a DPhil from the University of Oxford in French legal history. Before being appointed to the High Court in May 2000 she was a partner in law firm Simpson Grierson and a member of various commercial Boards and government advisory committees. She was Research Assistant to the late historian Sir Keith Sinclair.
She served as President of the Inter-Pacific Bar Association, the leading organisation for commercial lawyers in the Asia Pacific region in 1998.
Glazebrook was appointed a judge of the High Court of New Zealand on 14 December 2000, having served until that time as temporary judge of that court. She was appointed to the Court of Appeal on 24 May 2002.
On 6 August 2012 she was appointed to the Supreme Court.
In the 2014 Queen's Birthday Honours, Glazebrook was appointed a Dame Companion of the New Zealand Order of Merit for services to the judiciary.