Conor Alexander Maguire (16 December 1889 – 26 September 1971) was an Irish politician, lawyer and judge who served as Chief Justice of Ireland from 1946 to 1961, a Judge of the Supreme Court from 1946 to 1961, President of the High Court, a Judge of the High Court from 1936 to 1946 and Attorney General of Ireland from March 1932 to November 1932.

He served as a Teachta Dála (TD) for the National University of Ireland constituency from 1932 to 1936.

He then returned to County Mayo, where he practised as a barrister and was instrumental in establishing Ireland's first working Republican Courts, which usurped the existing courts and created a forum to try offenders, resolve grievances and adjudicate on land issues.

[3] He was appointed as Attorney General of the Irish Free State in March 1932.

[4] In November 1936, he resigned as Attorney General and as a TD on his appointment as President of the High Court and a Judge of the High Court.