| Birth Date: | 1758 |
| Death Date: | 1813 (aged about 55) |
| Fields: | Botany and horticulture |
| Workplaces: | Cambridge University Botanic Garden |
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| Known For: | Hortus Cantabrigiensis |
| Awards: | Fellow of the Linnean Society |
| Author Abbrev Bot: | Donn |
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| Relatives: | William Sterndale Bennett, grandson |
James Donn (1758–1813) was an English botanist and gardener.[1] He was trained by William Aiton, a protege of Sir Joseph Banks and was Curator of the Cambridge University Botanic Garden, Cambridge, from 1790 until his death.[2] [3] His most important work was Hortus Cantabrigiensis, first published in 1796 but with several later, much expanded, editions. It carried on past his death until 1845.[4]
A copy was given to the Library of the Gray Herbarium of Harvard University in 1895.[5]
He became a Fellow of the Linnean Society in 1812.
A memorial to James Donn, exists on St Edward the Martyr's church in Cambridge.[6] A grandson was the English composer William Sterndale Bennett.[7]