Tarquin and Lucretia is an oil painting by Titian completed in 1571, when the artist was in his eighties, for Philip II of Spain. It is signed, and considered to have been finished entirely by Titian himself. It is one of a series of great works from Titian's last years, but unlike some of these, is fully finished. It is now in the Fitzwilliam Museum in Cambridge, England.

Tiziano Vecelli or Vecellio, Latinized as Titianus, hence known in English as Titian, was an Italian (Venetian) Renaissance painter of Lombard origin, considered the most important member of the 16th-century Venetian school. He was born in Pieve di Cadore, near Belluno. During his lifetime he was often called da Cadore, 'from Cadore', taken from his native region.