John Terrick Williams (1860 – 1936), better known as Terrick Williams, was a British painter who was a member of the Royal Academy. He was educated at King's College School, Wimbleton, London and was expected by his father to continue in the family business.

However, his determination to become an artist saw him abandon his business career and move to Europe in 1885 and study under Charles Verlat in Antwerp and later at the Académie Julian and Jean-Joseph Benjamin-Constant, William-Adolphe Bouguereau and Tony Robert-Fleury in Paris.

After his student days in Paris, he moved to St. Ives in 1890 where he lived, between there and his London home. Williams focussed on landscape and marine subjects and painted in oil, pastel and watercolour.