Grainne is a partner in the Finance Department of Arthur Cox. She was the first female equity partner in Arthur Cox, and also served as the first female Department Head for seven years. She specialises in banking and project finance law and debt restructurings, and her clients include Irish banks, international banks, private equity firms and corporate borrowers. In Chambers Global: The World's Leading Lawyers for Business 2017, she is ranked as a Star Individual and is the only Banking and Finance Lawyer in Ireland with this ranking.

grainne-hennessy's picture

Contact details

+ 353 1 920 1202 /

Areas of Practice

Banking and Finance
  • Year Qualified



    1983-1987, BCL and LLB, University College Cork


    Law Society of Ireland