Ernest William Buckmaster (1897–1968) was an Australian artist born in Victoria. He won the Archibald Prize in 1932 with a portrait of Sir William Irvine. He also served as an Australian war artist during World War II.
Although an accomplished painter of portraits and still life subjects, he is best known for his landscapes; a follower of the Heidelberg School. Those he generally painted en plein air rather than from photographs.
His works are held in the following public galleries in Australia – Art Gallery of NSW, National Gallery of Victoria, Albury Art Museum, New England Regional Art Museum, Art Gallery of South Australia, National Portrait Gallery Canberra, Geelong Gallery and Art Gallery of Western Australia.

