Tuomas Ojanen is Professor of Constitutional Law at the University of Helsinki.

He is also Ad hoc judge of Finland of the European Court of Human Rights for the years 2017-2020; Member of the Management Board of the European Agency for Fundamental Rights (July 2020-June 2025); and Chair of the National Non-Discrimination and Equality Tribunal, an impartial and independent judicial body appointed by the Government and supervising compliance with the Non-Discrimination Act and the Act on Equality between Women and Men both in private activities and in public administrative and commercial activities (1 August 2019-31 July 2023).

His main areas of research and expertise include Finnish constitutional law, comparative constitutional law, EU law and international human rights law.