Thomas Westphal is a German economist, politician (SPD) and the lord mayor of Dortmund. Previously, he was managing director of City of Dortmund Economic Development Agency from 2014 to 2020. Before, he was managing director of business development metropoleruhr, whose advisory board he still belongs to today. From 1993 to 1995 he was Federal Chairman of the Jusos. Westphal assumed as the lord mayor of Dortmund on 1 November 2020.