Haris I. Boyiadjis was born in Famagusta in 1960.
Following his graduation from Kykkos High School for Boys and the completion of his military service as a Reserve Second Lieutenant in the Infantry and Military Police, he pursued his legal studies at the University of Exeter, England, where he obtained his LLB (Hons) degree in 1984.
Upon his return to Cyprus, he practised law until 8 January 1995. On 9 January 1995, he was appointed as a District Judge. In September 2003, he was promoted to Senior District Judge and, in September 2009, to President of a District Court.
From 1998 to 2004, he served as an Examiner and Lecturer for the Cyprus Legal Council, teaching Immovable Property Law and Inheritance Law.
In May 2020, at his own request, he retired prematurely from the Court Service. From August 2020 until 3 May 2022, he served as a Special Legal Adviser at a law firm.
From January to July 2021, he served as President of the Investigative Committee established in relation to the CYPRA Slaughterhouse.
From February 2021 to May 2022, he served as President of the Sports Ethics and Protection Committee, while concurrently serving as a member of the Board of Directors of Hydra Insurance Company Ltd.
On 8 July 2022, he was appointed Commissioner for Transparency at the Independent Authority Against Corruption.
He is the father of one adult daughter.