Harriet Lenigas

Date of admission to the Bar
2019

Background

Harriet has over ten years’ experience advising and appearing in large scale, high value cross-border commercial disputes. She has appeared in ICC, LCIA, LMAA, HKIAC and UNCITRAL arbitrations in London, New York, Hong Kong and Australia. With a broad national practice, appearing in important proceedings throughout Australia in the Federal and Supreme Courts, Harriet accepts briefs in all areas of commercial law. Harriet also has significant experience in major infrastructure and energy disputes and class actions. Most recently, Harriet has been appearing for INPEX Operations Ltd in its long running, multi-billion dollar claim against Akzo Nobel entities in the Federal Court regarding the Ichthys LNG Project.

Harriet was recognised in the Legal 500 Asia Pacific, 2025 edition as one of the leading junior counsel in construction, infrastructure and property (Band 1) and in commercial disputes (Band 3) with the following commentary.

‘Harriet is an excellent construction/infrastructure barrister. Her strengths are the law, and ensuring matters are well prepared for hearing to achieve the best possible outcome.’

‘Harriet is extremely hard working and will not rest until deadlines are complied with. She has a receptive manner. She produces written work of a high quality’.

Harriet was recognised as one of the leading arbitration junior counsel in Australia by Doyle’s Guide in both 2023 and 2024.

Since June 2024, Harriet has been a member of NSW Bar Association Wellbeing Committee.

Prior to being called to the Bar, Harriet was a Senior Associate at Ashurst, where she instructed in international arbitrations and significant Australian court proceedings.

Harriet was also the associate to the Hon L. G. Foster in the Federal Court of Australia.