Ms Woodroffe was suing a Samoa Court of Appeal judge, former New Zealand High Court judge Justice Robert Fisher, and Samoa's Attorney General for $US2.4m dollars.
The case relates to a family land dispute hearing in 2016 in which she brought an appeal against a Supreme Court decision.
Ms Woodroffe was suing Justice Fisher for his comments in the appeal case.
In her ruling, Supreme court Judge, Mata Keli Tuatagaloa, concluded the doctrine of judicial immunity applies to Justice Fisher.
