Ophelia is an 1851–52 painting by British artist Sir John Everett Millais in the collection of Tate Britain, London. It depicts Ophelia, a character from William Shakespeare's play Hamlet, singing before she drowns in a river.

Sir John Everett Millais, 1st Baronet was an English painter and illustrator who was one of the founders of the Pre-Raphaelite Brotherhood. He was a child prodigy who, aged eleven, became the youngest student to enter the Royal Academy Schools. The Pre-Raphaelite Brotherhood was founded at his family home in London, at 83 Gower Street. Millais became the most famous exponent of the style, his painting Christ in the House of His Parents (1849–50) generating considerable controversy, and he produced a picture that could serve as the embodiment of the historical and naturalist focus of the group, Ophelia, in 1851–52.