The Birth of Venus (Italian: Nascita di Venere [ˈnaʃʃita di ˈvɛːnere]) is a painting by the Italian artist Sandro Botticelli, probably executed in the mid 1480s. It depicts the goddess Venus arriving at the shore after her birth, when she had emerged from the sea fully-grown (called Venus Anadyomene and often depicted in art). The painting is in the Uffizi Gallery in Florence, Italy.

Although the two are not a pair, the painting is inevitably discussed with Botticelli's other very large mythological painting, the Primavera, also in the Uffizi. They are among the most famous paintings in the world, and icons of Italian Renaissance painting; of the two, the Birth is better known than the Primavera. As depictions of subjects from classical mythology on a very large scale they were virtually unprecedented in Western art since classical antiquity, as was the size and prominence of a nude female figure in the Birth. It used to be thought that they were both commissioned by the same member of the Medici family, but this is now uncertain.

They have been endlessly analysed by art historians, with the main themes being: the emulation of ancient painters and the context of wedding celebrations (generally agreed), the influence of Renaissance Neo-Platonism (somewhat controversial), and the identity of the commissioners (not agreed). Most art historians agree, however, that the Birth does not require complex analysis to decode its meaning, in the way that the Primavera probably does. While there are subtleties in the painting, its main meaning is a straightforward, if individual, treatment of a traditional scene from Greek mythology, and its appeal is sensory and very accessible, hence its enormous popularity.

Alessandro di Mariano di Vanni Filipepi (c. 1445 – May 17, 1510), better known as Sandro Botticelli ( BOT-ih-CHEL-ee; Italian: [ˈsandro bottiˈtʃɛlli]) or simply Botticelli, was an Italian painter of the Early Renaissance. Botticelli's posthumous reputation suffered until the late 19th century, when he was rediscovered by the Pre-Raphaelites who stimulated a reappraisal of his work. Since then, his paintings have been seen to represent the linear grace of late Italian Gothic and some Early Renaissance painting, even though they date from the latter half of the Italian Renaissance period.

In addition to the mythological subjects for which he is best known today, Botticelli painted a wide range of religious subjects (including dozens of renditions of the Madonna and Child, many in the round tondo shape) and also some portraits. His best-known works are The Birth of Venus and Primavera, both in the Uffizi in Florence, which holds many of Botticelli's works. Botticelli lived all his life in the same neighbourhood of Florence; his only significant times elsewhere were the months he spent painting in Pisa in 1474 and the Sistine Chapel in Rome in 1481–82.

Only one of Botticelli's paintings, the Mystic Nativity (National Gallery, London) is inscribed with a date (1501), but others can be dated with varying degrees of certainty on the basis of archival records, so the development of his style can be traced with some confidence. He was an independent master for all the 1470s, which saw his reputation soar. The 1480s were his most successful decade, the one in which his large mythological paintings were completed along with many of his most famous Madonnas. By the 1490s, his style became more personal and to some extent mannered.