John Giles Eccardt (c. 1720 – 1779) was a Holy Roman Empire-born British painter who specialised in portrait painting.
[1] He came to England in the company of the French painter Jean-Baptiste van Loo for whom he worked as an assistant.
When Van Loo left England, Eccardt remained and set up a portrait-painting business.
In the following years he painted portraits of a number of leading members of British society, including twenty-six paintings of his chief patron Horace Walpole.
Eccardt died in 1779.