Rudolf Heinrich Friedrich Weinland (22 November 1865, in Hohenwittlingen – 9 August 1936, in Münster) was a German pharmaceutical chemist. He was the son of zoologist David Friedrich Weinland (1829–1915).
From 1887 he studied at the Polytechnic in Stuttgart and at the University of Erlangen, receiving his doctorate from the latter institution in 1891. From 1892 he worked as an assistant to Albert Hilger in the chemistry laboratory at the University of Munich, where in 1899 he obtained his habilitation for pharmaceutical chemistry. In 1902 he was named an associate professor at the University of Tübingen, then in 1920 relocated to Würzburg as head of the department of pharmaceutical chemistry and the laboratory of applied chemistry.[1][2]