Ejler Bille (6 March 1910 – 1 May 2004) was a Danish artist.
Born in Odder, Denmark, he studied at the Kunsthåndværkerskolen (Art and Craft School) in Copenhagen, with Bizzie Høyer 1930–1932 and the Royal Danish Academy of Art, 1933. He joined Linien in 1934, Corner in 1940 and CoBrA in 1949. He had concentrated on small sculptures, but moved into painting after joining CoBrA.
In 1969 he was Guest Professor at the Royal Danish Academy of Art.
He was awarded the Eckersberg Medal in 1960 and the Thorvaldsen Medal in 1969.