Michalis Kalogirou was born in Athens in 1975 and studied Law at the University of Foggia, Italy.
He is a member of the Athens Bar Association and a litigator in Greece and Italy since 2001.
In February 2014 he was elected to the Board of Directors of the Athens Bar Association.
From January to August 2015 he served as Legal Advisor of Minister of State Nikos Papas. During his tenure, he drafted the Law for the reopening of the public Hellenic Broadcasting Corporation (ERT), he prepared the Draft Law on digital signal television licenses, and he also represented the Minister in the negotiations with the Institutions’ technical units on issues pertaining to Mass Media.
In May 2015 he was appointed member of the Anti-Corruption Interministerial Committee by Prime Minister Alexis Tsipras.
He was appointed Secretary General of the Interim Government (August-September 2015) by former Prime Minister and President of the Supreme Court Vasiliki Thanou-Christophilou.
He served as Secretary General of the Government from September 2015 until August 28, 2018.