Reynell Coates (December 10, 1802 in Philadelphia, Pennsylvania – April 27, 1886 in Camden, New Jersey) was an American physician, scientist, teacher, poet and politician.
He was graduated from the medical department of the University of Pennsylvania in 1823 with a thesis on "Fractures of Inferior Extremities", and became resident physician at the hospital.
He was the author of the national address of the Native American Party in 1844, and the originator of the Patriotic Order Sons of America December 10, 1847, and wrote its ritual.
In the national election of 1852 he was the candidate of the Native American Party for vice-president of the United States, on the ticket with Jacob Broom, for president.
Coates contributed voluminously to various medical and scientific journals, many of them being translated into the French, German, Spanish and Italian languages.