Didier Bigo (born 31 August 1956) is a French academic from Lille and Professor of International Relations at King's College London and at Sciences Po, Paris.
Walker, the peer-reviewed academic journal, International Political Sociology and as of 2014 was an editor for the French journal, Cultures et Conflits.
He is considered one of the leading academics within the Paris School of security studies, and a core figure within the International Political Sociology research programme.