Port of Melbourne Authority v Anshun

Port of Melbourne Authority v Anshun Pty Ltd
CourtHigh Court of Australia
Decided1 Sep 1981
Citations[1981] HCA 45, 147 CLR 589
Court membership
Judges sittingGibbs CJ, Mason, Murphy, Aickin and Brennan JJ
Case opinions
majority
Gibbs CJ, Mason and Aickin JJ
Murphy J
Brennan J

Port of Melbourne Authority v Anshun Pty Ltd (also known as 'Anshun') is a decision of the High Court of Australia.

The case is notable for originating the 'Anshun estoppel' doctrine in Australian civil proceedings. The rule estops parties from making novel legal claims, when those claims should have been pursued in an earlier legal proceeding.

Anshun is the 29th most cited High Court case as of January 2021.