Hon. Justice P. O. Nnadi was born on the 12th of March 1955 at Emekuku to the family of Late Pa Stephen O. Nnadi and Lolo Regina A. Nnadi all of Ndegbelu Awaka in the Owerri North Local Government Area of Imo State of Nigeria.
He had his early education at Our Lady of Mount Carmel Primary School Emekuku (Now Chief Obi Memorial Primary School Emekuku) from where he gained admission to the Prestigeous Holy Ghost College Owerri and passed the WASC Examination in Division I in 1975 and the Higher School Certificate Examination in 4 papers in 1977.
He gained direct entry admission to the Cosmopolitan University of Lagos (Akoka) where he studied Law and obtained the Bachelor of Laws Degree (LLB Hons) in 1981 and was called to the Nigeria Bar in 1982.
Hon. Justice P. O. Nnadi served in the NYSC Scheme as a Legal Counsel to the Anambra State House of Assembly from 1982 to July 1983 and was in Private Legal Practice at Owerri from 1983 to 1988.. He later joined the Judicial Service of Imo State as a Senior Magistrate and rose to the rank of Chief Magistrate in 1992, Deputy Chief Registrar (High Court) from 1993 to 1995, Chief Registrar (High Court) from 1995 to 1998 and was elevated to the High Court Bench in April 1998 and has served in that capacity till date.
He has attended several professional and administrative conferences, seminars and workshop at both domestic and international Fora including the
EXECUTIVE RETREAT/WORKSHOP ON MANAGING GOVERNMENT BUSINESS HELD IN OGUTA MOTEL OGUTA, IMO STATE
SEMINAR ON THE NIGERIAN OIL & GAS INDUSTRY – THE LAW AND THE ENVIRONMENT (1999)
NATIONAL WORKSHOP ON BETTER PROTECTION FOR WOMEN AND CHILDREN UNDER THE LAW HELD IN KANO
ALL NIGERIAN JUDGES CONFERENCE HELD IN ABUJA IN 2001, 2003 ,2005 AND 2009.
INDUCTION COURSE FOR NEWLY APPOINTED JUDGES AND KADIS HELD IN ABUJA – JUNE 2002
REFRESHER COURSE FOR JUDGES AND KADIS HELD IN ABUJA – (24TH – 28TH MARCH 2003)
NATIONAL JUDICIAL INSTITUTE WORKSHOP ON JURISPRUDENCE OF EQUALITY PROGRAMME (J.E.P) HELD IN KADUNA – (26TH – 30TH MAY 2008),AND MAY 2010
WORLD JURIST ASSOCIATION CONFERENCE ON IMMIGRATION HELD IN LOS ANGELIS, CALIFORNIA, USA (22ND – 26TH APRIL 2007)
Hon. Justice P. O. Nnadi is a proud member of the enviable Catholic Order of the Knights of St Mulumba. He is married to Banister Mrs. Ine Nnadi a Senior lecturer in the Faculty of Law, Imo State University Owerri and they have twin boys.
He enjoys studying human behaviour, listening to music and playing table tennis and Basket Ball.