Mr. Justice Riaz Ahmad khan was born on 15-05-1952 in Nowshera (Khyber Pakhtunkhwa). His father Mr. Abdul Rashid Khan was an educated business-man and an active social and political worker. He consistently remained Chairman Local Bodies in Nowshera, Member District Council Peshawar and a Jirga Member. Mr. Justice Riaz Ahmad Khan after matriculation got admission in Edwardes College, Peshawar. After graduation in 1973, he joined Political Science Department in Peshawar University and got Masters Degree in 1975. Mr. Riaz Ahmad Khan got LL.B Degree from Punjab University. He qualified C.S.S Examination in 1977 and joined Civil Services Academy Lahore, in the fourth common training. After completion of common course in the Civil Services Academy, Mr. Justice Riaz Ahmad Khan was allocated to Pakistan Railway Transportation and Commercial Group. He completed another course in Walton Training School, Lahore and thereafter was posted as Assistant Transportation /Assistant Commercial Officer, Pakistan Railways, Lahore Division. From Lahore, Mr. Justice Riaz Ahmad Khan was transferred and posted at Peshawar. During this period, P.C.S. Judicial Examination was announced in Khyber Pakhtunkhwa , then N.W.F.P. Mr. Justice Riaz Ahmad Khan, participated in the said examination and qualified the same. Consequently, the services of Mr. Justice Riaz Ahmad Khan, on his request were transferred from Federal Government to the Provincial Government of N.W.F.P. Mr. Justice Riaz Ahmad Khan, remained posted as Civil Judge Kohat, Haripur, and Peshawar and lastly posted as Senior Civil Judge at D. I. Khan. He resigned from the said post and started practicing law. During his legal practice, he conducted many well known cases on Civil, Criminal and Constitutional side. He was appointed as Assistant Advocate General (N.W.F.P) in 1997. Later on, he was appointed as Additional Deputy Prosecutor General Accountability, NAB (F), Peshawar and he remained on that post for three years. He was elected as Member Provincial Bar Council (N.W.F.P) in 1999.
In his student life, Mr. Justice Riaz Ahmad Khan used to participate in debates and won innumerable prizes, which includes Gold Medal in All Pakistan Declamation Contest. He remained President Political Science Department, University of Peshawar. He still takes keen interest in literature, political science and law and his only hobby is book reading.
He was elevated as Judge Islamabad High Court on 21-12-2010 and retired on 14th May, 2014 on superannuation. He was reappointed as Judge of the Federal Shariat Court on 08.08.2014 and elevated as Chief Justice, Federal Shariat Court of Pakistan on 07.03.2015.