Barbara Weiler (born on 17 September 1946 in Düsseldorf) is a German politician and Member of the European Parliament with the Social Democratic Party of Germany, part of the Socialist Group and sits on the European Parliament's Committee on Internal Market and Consumer Protection.She is a substitute for the Committee on Employment and Social Affairs, a member of the Delegation for relations with the countries ofSoutheast Asia and the Association of Southeast Asian Nations (ASEAN) and a substitute for the Delegation for relations with Japan.