Leontios was born in Nicosia, Cyprus in 1992. He graduated from the University of Essex with an LLB Law in 2015. In 2016 was awarded with an LLM in European Commercial Law from the University of Essex. His dissertation was in relation to the legal and democratic accountability of the European Central Bank. In 2016-2017 he studied the Bar Professional Training Course at the University of Cardiff and was called to the Bar of England and Wales by the Honorable Society of the Middle Temple as a Barrister-at-Law. In 2017-2018 he has completed successfully his pupillage at LLPO Law firm and passed the Cyprus Bar.
Excellent knowledge of Greek and English and very good knowledge of French, Russian and Mandarin.