Judge Wojciech Hermeliński was born on 29 March 1949 in Warsaw. Graduated from the Faculty of Law of the Warsaw University in 1971. From 1971 to 1972 completed a prosecutor's training in the Voivodship Prosecutor's Office in Warsaw. From 1972 to 1977 an associate judge and deputy prosecutor at District of Praga North in Warsaw.

In the period 1984-2006 worked as an advocate. Deputy Secretary of the District Bar Council in Warsaw from 1995 to 1998 and Deputy Dean of that Council from 1998 to 2001. Vice-President of the Polish Bar Council from 2001 to 31 October 2006. The Polish Bar Council presented him the Award of Merit to the Bar.

Plenipontentiary in property cases before the European Court of Human Rights in Strasbourg regarding territory beyond the Bug river (so-called Bug River Claims) .

In 1999 appointed Vice-President of the Human Rights Institute of the Bar of Bordeaux. From May to 31 October 2006 a member of the supervisory board of the Polish Public Television.

Author of publications on the jurisprudence of the European Court of Human Rights concerning ownership rights protection and on extradition.

In October 2006 the Sejm of the Republic of Poland appointed him judge of the Constitutional Tribunal.