William Hammer (painter)

William Hammer (31 July 1821 – 9 May 1889) was a Danish artist who specialized in painting still lifes of flowers and fruit. Born in Copenhagen, he studied at the Royal Danish Academy of Fine Arts from 1833 to 1839. In 1860, he was awarded the Thorvaldsen Medal for his painting Korn og frugter under et æbletræ (Grain and Fruit under an Apple Tree). Hammer participated in the decoration of rooms in the Thorvaldsen Museum under the leadership of Michael Gottlieb Bindesbøll.

In later life he travelled to Italy to investigate archaeological finds. This resulted in his book Om de antike lerlamper (About Antique Clay Lamps) which was published in 1887.

Hammer's elder brother, Hans Jørgen Hammer (1815–1882), was also a painter.