Johann Philipp Breyne FRS (9 August 1680 – 12 December 1764) was a German-Polish botanist, palaeontologist, zoologist and entomologist. He is best known for his work on the Polish cochineal (Porphyrophora polonica), an insect formerly used in production of red dye. Proposed by Hans Sloane, he was elected, on 21 April 1703, a Fellow of the Royal Society. He was also a member of the German Academy of Sciences Leopoldina (after 1715) and the Societas Litteraria (after 1720)

Works

• De Plantis & Insectis Quibusdam Rarioribus in Hispania Observatis, In: Philosophical Transactions. Bd. 24, S. 2044–2055, 1704/1705
• Epistola D. J. Phil. Breynij, M. D. Gedanensis, & Reg. Societ. Lond. Sodal. ad D. Hans Sloane, M. D. Dictoe Societatis Secretarium; Varias Observationes Continens, in Itinere per Italiam Suscepto, Anno 1703. Bd. 17, S. 447–459, 1710/1712
• Dissertatiuncula de Agno Vegetabili Scythico, Borametz Vulgo Dicto, In: Philosophical Transactions. Bd. 33, S. 353–360, 1724/1725
• Observatio de Succinea Gleba, Plantae Cujusdam Folio Impraegnata, Rarissima, Bd. 34, S. 154–156, 1725/1726
• Historia naturalis Cocci Radicum Tinctorii quod polonicum vulgo audit (Danzig, 1731)
• Some Corrections and Amendments by J. P. Breynius, M.D. F.R.S. concerning the Generation of the Insect Called by Him Coccus Radicum, in His Natural History Thereof, Printed in the Year 1731..., In: Philosophical Transactions Bd. 37, S. 444–447, 1731/1732
• A Letter from John Phil. Breyne, M. D. F. R. S. to Sir Hans Sloane, Bart. Pres. R. S. with Observations, and a Description of Some Mammoth's Bones Dug up in Siberia, Proving Them to Have Belonged to Elephants, In: Philosophical Transactions Bd. 40, S. 124–138, 1737
• Prodromi fasciculi rariorum plantarum primus et secundus... (1739) – Aus dem Nachlass seines Vaters
• Observatio de Immodico & Funesto Lapidum Cancrorum, Similiumque Terrestrium Absorbentium Usu, Indeque Ortis Calculis in Ventriculo & Renibus, In: Philosophical Transactions Bd. 41, S. 557–559, 1739/1741 (with Hans Sloane)