Heinrich Rehkemper (23 May 1894 in Schwerte - 30 December 1949 in Munich) was a German baritone singer whose repertoire was in opera and Lieder, and whose career was principally in Germany between the First and Second World War.
In 1925, he returned to the operatic stage, joining the Munich opera house company, where Hans Knappertsbusch was taking over direction from Bruno Walter.
In the German repertoire he had roles in Pfitzner's Palestrina and Das Herz; Schultze's Schwarzer Peter; Eugen d'Albert's Tiefland, Goetze's Widerspenstigen Zähmung, Jokanaan in Richard Strauss's Salome, and others.
Rehkemper also had a wide repertoire of Lieder, notably songs by Schumann, Schubert, Hugo Wolf, Grieg, Richard Strauss and the Austrian composer Siegmund von Hausegger.
He performed song-cycles, notably Winterreise, von Hausegger's Hymns to the Night, and Mahler's Lieder eines fahrenden Gesellen and Kindertotenlieder, the latter being preserved in an effective recording.