Taslim Olawale Elias was a Nigerian jurist who served as minister of Justice and attorney-general of Nigeria from 1960 to 1966, Chief Justice of Nigeria from 1972 to 1975 and president of the International Court of Justice from 1982 to 1985. He was a scholar who modernised and extensively revised the laws of Nigeria.

The Chief Justice of Nigeria or CJN is the head of the judicial arm of the government of Nigeria, and presides over the country's Supreme Court and the National Judicial Council. The current Chief Justice is Olukayode Ariwoola who was appointed on 27 June 2022. He was appointed Acting Chief Justice of the Federation upon the resignation of incumbent Chief Justice Tanko Muhammad, he was confirmed Chief Justice by the Nigerian Senate on 21 September 2022. The Supreme Court of Nigeria is the highest court in Nigeria and its decisions are final. The Chief Justice of Nigeria is nominated by the President of the Federal Republic of Nigeria upon recommendation by the National Judicial Council and is subject to confirmation by the Senate of the Federal Republic of Nigeria. The CJN holds office at the pleasure of the Nigerian constitution and can only be removed from office by death or on attainment of age 70 whichever occurs first or by impeachment by the Senate of the Federal Republic of Nigeria which requires a super majority of the members of the Nigerian Senate.