William Pars ARA (28 February 1742 – 1782) was an English watercolour portrait and landscape painter, draughtsman, and illustrator.
He studied at "Shipley's Drawing School" (in the Strand), St. Martin's Lane Academy, and also in the Duke of Richmond's Gallery.
In June 1764, he was selected by the Dilettanti Society to accompany, as draughtsman, Richard Chandler and Nicholas Revett to Greece.
[3] Pars returned to England on 2 December 1766, and soon after accompanied Henry Temple, 2nd Viscount Palmerston, to the continent, making drawings in Switzerland, the Tyrol, and Rome.
He was elected an associate in 1770, and in the following year, he sent eight European views, chiefly of Switzerland and the Tyrol, together with one portrait.