Richard Parnell FRSE MWS (1810–28 October 1882) was a British physician remembered as an amateur zoologist, ichthyologist and agrostologist. He gives his name to Parnell's moustached bat. The grass Parnelli is also named after him.
He went to the University of Edinburgh in 1834 to study medicine. He won Professor Robert Graham's gold medal for practical botany and Professor John Lizars' silver medal for anatomy. On 8 February 1836 he was one of the founding members of the Edinburgh Botanical Society. He finished his medical training with postgraduate study in London and Paris.
From April 1839 well into 1840 he collected specimens in Jamaica and the West Indies, taking extensive notes and making many illustrations. He also made a tour of the museum collections of the United States.
His portrait, painted by Mr Norman MacBeth, is in the London Welcome Library.
He was married to "Miss Curte".
- Essay on the Natural and Economic History of the Fishes (Marine, Fluviatile and Lacustrine) of the River District of the Firth of Forth (1838)
- The Grasses of Britain vol 1 (1842)
- The Grasses of Britain vol 2 (1845)
- Etymological Dictionary of Grasses, HT Clifford and PD Bistock
- "Records Available for John Ratcliffe Parnell - MyHeritage".
- "Richard Parnell, M.D". Transactions of the Botanical Society of Edinburgh. 16: 6–8. 1886. doi:10.1080/03746608609468215.
- Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783–2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 0 902 198 84 X.
- The Eponym Dictionary of Mammals
- Edinburgh and Leith Post Office Directory 1860
- Edinburgh Post Office Directory 1881
- "Parnell, Richard, 1810-1882. @ SNAC".
- IPNI. Parn.