Fidelma Macken

Fidelma Macken, SC (née O'Kelly; born 28 February 1942) is a retired Irish judge who served as a Judge of the Supreme Court from 2005 to 2012, a Judge of the High Court from 1998 to 1999 and between 2004 and 2005 and a Judge of the European Court of Justice from 1999 to 2004.

In 2004, she succeeded John L. Murray, as Ireland's appointee on the European Court of Justice (ECJ). Appointed initially for a five-year term, she was the first female appointee to the European Court of Justice but had her mandate renewed in 2003. She was reappointed a High Court judge on 18 October 2004 on her return to Ireland.

Macken was educated at King's Inns and Trinity College Dublin.

She has been a lecturer in Legal Systems and Methods and Averil Deverell Lecturer in Law at Trinity College Dublin. She is a member of the Investment Advisory Panel of Woodsford Litigation Funding, a company engaged in litigation funding.