Steffen Rüdiger Seibert (born 7 June 1960 in Munich) is a German journalist who served as head of the German Federal Government's Press and Information Office and as the German government's spokesperson from 2010 to 2021. During his tenure, Seibert was officially ranked as a Secretary of State. From late 2016 Seibert was a member of the German government's cabinet committee on Brexit at which ministers discuss organizational and structural issues related to the United Kingdom's departure from the European Union.