Sweet Summer (1912) is an oil painting by the English Pre-Raphaelite painter John William Waterhouse. This lovely painting of a girl lying on a lawn beside a pool is of the loosely classical but essentially subjectless type that John William Waterhouse, along with other Romantic artists of his generation, turned to in the early years of the present century. The ancient world is suggested to the spectator by the fountain - which consists of lion heads from the mouth of each of which a jet of water flows - and the marble pavement and column bases of a temple, seen at the top edge of the composition.