The Hon. Mark Le Poer Trench

Areas of Expertise

Family Law

Mediation & Arbitration


Mark was called to the Bar in 1980 and practised predominantly in family law from Lachlan Macquarie Chambers and Arthur Phillip Chambers at Parramatta until his appointment as a Judge of the Family Court of Australia in October 2001. Mark served as a Judge in the Sydney Registry of that court until November 2018.

Mark holds a Barristers practicing certificate.

Mark is a mediator and arbitrator for family law matters. He is a member of the Australian Institute of Family Law Arbitrators and Mediators. He is a member of the Family Law Section of the Law Council of Australia.

Mark holds an appointment as a Principal Member on the NSW Civil and Administrative Tribunal, having been appointed as an Acting NSW District Court Judge.


The Hon. Mark Le Poer Trench