Anthony James Hederman (11 August 1921 – 10 January 2014) was an Irish judge and barrister who served as a Judge of the Supreme Court from 1981 to 1993 and Attorney General of Ireland from 1977 to 1981.

He was born on 11 August 1921 in Naas, County Kildare, Ireland.^[1] He was educated at Castleknock College, a private Roman Catholic boys' school in Dublin where he developed a useful network of contacts.^[2][3] His contemporaries at school included the future Taoiseach Liam Cosgrave.^[4] He went on to obtain an honours degree in legal and political science from University College Dublin. He was a member of Fianna Fáil and for a time in the 1960s was joint Honorary Treasurer of the party (along with Neil Blaney).^{[citation needed]}

Hederman was called to the Bar in 1944.^[5] He mainly undertook prosecutions and other State work.^[1] He was Attorney General of Ireland from July 1977 to June 1981.^[6] In 1981, he was appointed as a Judge of the Supreme Court of Ireland and served there until 1993. He was the sole dissenter in the X Case judgement. He was later appointed as the president of the Law Reform Commission.^[7] He died in 2014. After his death the UCD Student Legal Service society named its annual moot court competition in honour of the late Mr Justice Hederman.^[8]