Gabriele Zimmer (called Gabi; born 7 May 1955 in Berlin, GDR) is a German socialist politician.She has been a member of the East German communist party, the Socialist Unity Party of Germany (SED) and its successors, continuously since 1981. The party was renamed SED-PDS in 1989, PDS in 1990 and Die Linkspartei.PDS in 2005. In 2007 it merged with WASG to form Die Linke. She was chairwoman of then-PDS from 2000 to 2003.