Charles Marshall (1637 – 15 November 1698) was an early Quaker mystic, medical practitioner, and author who devoted his life to preaching throughout England.
About 1668, he settled at Tytherton, Wiltshire, and published about 1681 A Plain and Candid of the Nature, Uses, and Doses of experienced.
In August 1670, while at prayer in a meeting at Claverham, Somerset, he was violently dragged by the justices through the gallery-rail and much injured.
He lost much property in fines for tithes, and in 1682 was prosecuted by Townshend, vicar of Tytherton, and committed to the Fleet, where he remained two years.
On his return he fell ill, and was moved to the house of John Podley, Southwark, where, after four months, he died of consumption, 15 November 1698.