Zeslene Mao is a senior associate in the Litigation/Controversy Department and a member of the International Arbitration Practice Group. Ms. Mao acts for a range of clients in complex international disputes, and has experience in arbitrations conducted under various institutional rules (including the LCIA and SIAC rules). Ms. Mao also has experience in complex multi-jurisdictional litigation, banking and finance disputes, joint venture and shareholder claims, fraud, investigation and asset tracing matters, and internet platform liability. 

Prior to joining WilmerHale, Ms. Mao was a senior associate at a leading dispute resolution firm in Singapore, where she regularly appeared before the Singapore courts and arbitral tribunals in commercial dispute matters. She was also appointed Young Amicus Curiae to the Singapore High Court in a case that raised novel issues of evidence law. 

Ms. Mao previously served as a Magistrate and Assistant Registrar of the Supreme Court of Singapore where she presided over civil hearings. Prior to her judicial appointment, Ms. Mao clerked for the Chief Justice and Judges of the Supreme Court of Singapore as a Justices’ Law Clerk and was a Deputy Public Prosecutor at the Attorney General’s Chambers of Singapore.


  • Education

    • Master of Law, Harvard Law School, 2023

      Dean’s Scholar Prizes for Taxation and Computer Science for Lawyers
    • LLB, National University of Singapore, 2014

      First Class Honours, Reserve Valedictorian

      Dean’s List (Overall, 2014, 2012, 2011), Straits Law Practice Prize for Best in Legal Writing, Analysis and Research, Rajah & Tann Prize for Best in Tax Law, NUS Undergraduate Merit Scholarship

  • Admissions

    • Singapore

  • Languages

    • English

    • Mandarin