John Lindley (February 8, 1799 - November 1, 1865) was an English botanist.

Lindley was born at Catton , near Norwich, where his father, George Lindley, author of A Guide to the Orchard and Kitchen Garden, owned a nursery garden. He was educated at Norwich grammar school . His first publication, in 1819, a translation of the Analyse du fruit of L. C. M. Richard , was followed in 1820 by an original Monographia Rosarum, with descriptions of new species, and drawings executed by himself, and in 1821 by Monographia Digitalium, and by "Observations on Pomaceae", contributed to the Linnean Society. Shortly afterwards he went to London, where he was engaged by J. C. Loudon to write the descriptive portion of the Encyclopaedia of Plants. In his labours on this undertaking, which was completed in 1829, he became convinced of the superiority of the "natural" system of Antoine Laurent de Jussieu, as distinguished from the "artificial" system of Linnaeus followed in the Encyclopaedia; the conviction found expression in A Synopsis of British Flora, arranged according to the Natural Order (1829) and in An Introduction to the Natural System of Botany (1830).

In 1829 Lindley, who since 1822 had been assistant secretary to the Horticultural Society, was appointed to the chair of botany in University College, London, which he retained till 1860; he lectured also on botany from 1831 at the Royal Institution, and from 1836 at the Botanic Gardens, Chelsea . During his professoriate he wrote many scientific and popular works, besides contributing largely to the Botanical Register, of which he was editor for many years, and to the Gardener's Chronicle , in which he had charge of the horticultural department from 1841. He was a fellow of the Royal, Linnean and Geological Societies. He died at Turnham Green .

Besides those already mentioned, his works include An Outline of the First Principles of Horticulture (1832), An Outline of the Structure and Physiology of Plants (1832), Nixus Plantarum (1833), A Natural System of Botany (1836), The Fossil Flora of Great Britain (with William Hutton , 1831-1837), Flora Medica (1838), Theory of Horticulture (1840), The Vegetable Kingdom (1846), Folia Orchidacea (1852), Descriptive Botany (1858).

The standard botanical author abbreviation Lindl. is applied to species he described.