Trebbin is a town in the Teltow-Fläming district of Brandenburg, Germany. It is situated on the river Nuthe, 14 km north of Luckenwalde, and 36 km southwest of Berlin .DemographyMayorSince 2003 the mayor is Thomas Berger . He was re-elected in September 2014.Twin towns Bognor Regis (England, UK) Weil am Rhein (Germany)