August Borchard (4 July 1864, Lemgo – 19 February 1940, Berlin) was a German physician and surgeon. He studied medicine at the Universities of Freiburg, Munich, Würzburg and Jena, receiving his doctorate at the latter institution in 1888 with a thesis on carcinomas of the antrum of Highmore, Ueber Carcinome der Highmorshöhle. Afterwards, he worked as an assistant in the pathological institute at Marburg and as a physician in the surgical clinic at the University of Königsberg. In 1895, he was a senior physician in the surgical department at the Diakonissenhaus in Posen. He later moved to Berlin, where he attained a professorship in 1908.