Peter Tillemans (c. 1684 – 5 December 1734) was a Flemish painter, best known for his works on sporting and topographical subjects. Alongside John Wootton and James Seymour, he was one of the founders of the English school of sporting painting.
From 1708 until his death he lived and worked in England.
Tillemans was born in Antwerp in c. 1684, the son of a diamond-cutter, and studied painting there under various masters. As he was the brother-in-law of another Flemish painter, Pieter Casteels, it is assumed that he married before leaving Antwerp. Like other artists from the Low Countries such as Dirk Maas, Jan Wyck and Willem van de Velde the Younger, Tillemans moved to England. In Tillemans's case he moved in 1708, induced to do so by a picture-dealer called Turner: he spent the rest of his life working there.
In his Sportsmen in a Landscape (1971), Aubrey Noakes offers this description of Tillemans:
If we may judge from his success Tillemans was a socially agreeable and charming man. A portrait of him reveals that he was a gentle, friendly-looking fellow, with long curling hair, presumably his own and not a wig, such as was commonly worn by members of the upper and professional classes in the late eighteenth century.
A chronic sufferer of asthma, Tillemans retired to Richmond "on account of his ill state of health". He died at the house of Dr Cox Macro (1683–1767, later chaplain to George II) in Little Haugh Hall, in Suffolk, on 5 December 1734 (the previous day he "had been busy on a horse portrait") and was buried on 7 December at Stowlangtoft. His collection of paintings had been sold in an auction conducted by Dr Macro on 19 and 20 April 1733 and included paintings by James Tillemans, probably a son or other relation, and by Arthur Devis, who, like Joseph Francis Nollekens, was one of Tillemans's pupils. Dr Macro had a bust of Tillemans made by John Michael Rysbrack, placing it "in a niche at the top of a staircase in Little Haugh Hall". A portrait of the artist, engraved by T. Chambers, from a painting by Hissings, is given in Fuseli's 1805 revised edition of Rev. Matthew Pilkington's A Dictionary of Painters.