Bille August R. (born 9 November 1948) is a Danish director, screenwriter, and cinematographer of film and television.

His filmography includes The House of the Spirits, based on the novel by Isabel Allende; Smilla's Sense of Snow; Les Misérables; Night Train to Lisbon, Silent Heart, The Chinese Widow and A Fortunate Man.

He collaborated twice with then wife Pernilla August under George Lucas on The Adventures of Young Indiana Jones in The Perils of Cupid and Tales of Innocence.

After decades of writing, directing and producing notable films in Denmark, on 23 September 2011, Bille August announced that he had opened a studio in Hangzhou, China and taken a position as Tianpeng Media's Art Director, in order to produce Chinese films for Tianpeng Media over the next few years.

The company produced two films, The Women Knight of Mirror (竞雄女侠秋瑾) and The Years of Qi Xiao Fu (七小福之燃情岁月), to be released later in 2011.