Thomas Schaaf is a German professional football manager, who last managed Werder Bremen and former player who played as a defender.

Sportverein Werder Bremen von 1899 e. V., commonly known as Werder Bremen, Werder or simply Bremen, is a German professional sports club based in the Free Hanseatic City of Bremen. Founded on 4 February 1899, Werder are best known for their professional association football team, who compete in the Bundesliga, the first tier of the German football league system. Bremen share the record for most seasons played in the Bundesliga with Bayern Munich, and are ranked third in the all-time Bundesliga table, only behind Bayern and Borussia Dortmund.