William Jack (1795, Aberdeen – 1822, Bencoolen, Sumatra) was a Scottish botanist.
Jack was employed by the East India Company as a surgeon in India, where he also studied botany and corresponded extensively with Nathaniel Wallich.[1] In 1818 he accompanied Stamford Raffles to Sumatra where he extensively documented the rich flora of that region until his untimely death in 1822.[1] Much of his work, including manuscripts, drawings, and collections were destroyed by fire in 1824.[1]
Three plant genera are named after him:[2]