Martin Henrichsen Vahl (October 10, 1749 – December 24, 1804) was a Danish-Norwegian botanist and zoologist.He studied botany in Copenhagen and in Uppsala under Carolus Linnaeus. He edited Flora Danica fasc. XVI-XXI (1787-1799), Symbolæ Botanicæ I-III (1790-1794), Eclogæ Americanæ I-IV (1796-1807) and Enumeratio Plantarum I-II (1804-1805).