Nikolaiviertel

thumb|250px| and St. Nicholas Church, Berlin|St. Nicholas Church in the center of the image thumb|250px|Neighborhoods in [[Berlin-Mitte: Old Cölln [1] (with Museum Island [1a], Fisher Island [1b]), Alt-Berlin [2] (with Nikolaiviertel [2a]), Friedrichswerder [3], Neukölln am Wasser [4], Dorotheenstadt [5], Friedrichstadt [6], Luisenstadt [7], Stralauer Vorstadt (with Königsstadt) [8], Alexanderplatz Area (Königsstadt and Altberlin) [9], Spandauer Vorstadt [10] (with Scheunenviertel [10a]), Friedrich-Wilhelm-Stadt [11], Oranienburger Vorstadt [12], Rosenthaler Vorstadt [13] ]]

The '''''' (; 'Nicholas Quarter') is an old quarter of the German capital of Berlin, founded . Together with nearby Cölln, they jointly make up Alt-Berlin, the reconstructed historical heart of the city. Located in the Mitte locality (in the homonymous district), it is five minutes away from Alexanderplatz and Berlin Palace.