Mahlsdorf is a locality (Ortsteil) within the Berlin borough (Bezirk) of Marzahn-Hellersdorf. Until 2001 it was part of the former borough of Hellersdorf.

The locality was mentioned for the first time in a document of 1345, named as Malterstorp. Until 1920 it was a municipality of the former Niederbarnim district, merged into Berlin with the "Greater Berlin Act".

Mahlsdorf is located in the eastern suburb of Berlin, at the borders with the Brandenburger district of Märkisch-Oderland. It is bounded by the municipality of Neuenhagen and Hoppegarten, with its hamlets Hönow, Waldesruh and Birkenstein. The Berliner bordering localities are Hellersdorf, Kaulsdorf and Köpenick (in Treptow-Köpenick district). In the south of the quarter there are the lakes Eisensee and part of the Habermannsee, divided with Kaulsdorf.

Mahlsdorf is divided into 2 zones (Ortslagen):

The locality, crossed by the federal highways B1 and B5, is served by the S-Bahn line S5, at the rail station of Mahlsdorf. Birkenstein station, situated in the homonymous hamlet of the town of Hoppegarten, is close to the eastern suburb of the quarter.

Charlotte von Mahlsdorf (18 March 1928 - 30 April 2002) was the founder of the Gründerzeit Museum (a museum of everyday items) in Berlin-Mahlsdorf.

Von Mahlsdorf was born Lothar Berfelde, to parents Max Berfelde and Gretchen Gaupp in Berlin-Mahlsdorf, Germany. At a very young age she felt more like a girl, and expressed more interest in the clothing and articles of little girls. She helped a second-hand goods dealer clear out the apartments of deported Jews and sometimes kept items.

Max Berfelde, Lothar's father, was already a member of the Nazi Party by the late 1920s and he had become a party leader in Mahlsdorf. In 1942 he forced Malhsdorf to join the Hitler Youth. They often quarrelled, but the situation escalated in 1944 when her mother left the family during the evacuation. Max demanded that Mahlsdorf choose between parents and threatened her with a gun. Shaken by this, she struck him dead with a rolling pin while he slept. In January 1945, after several weeks in a psychiatric institution, Malhsdorf was sentenced by a court in Berlin to four years detention as an anti-social juvenile delinquent.

Dominique Horwitz (born 23 April 1957) is a French film and television actor and singer.

Horwitz was born on 23 April, 1957 in Paris, France to German Jewish refugee parents, who had both fled Nazi Germany. In 1971 the family moved to Berlin. He attended a Franco-German grammar-school. He has a sister and a brother. About twenty years Horwitz was located in Hamburg where he was married. From his first marriage with his wife Patricia he has two children, the actress Miriam and Laszlo. Today he lives with his second wife Anna and the children Mick and Marlene in Tiefengruben, Bad Berka, a village near Weimar in Thuringia. He is a prominent supporter of social institutions in Weimar, where he helps unemployed youths in a boxclub. He also organizes boxing tournaments and links them with culture. Between the boxing matches musical newcomers can perform their music.

He has appeared in over thirty films and over fifty television productions. His first screen role was appearing as Leo Singer in the film David (1979).