Ellen Winther Lembourn (11 August 1933, Århus - 13 August 2011) was a Danish opera singer and actress, best known internationally for her participation in the 1962 Eurovision Song Contest.
Winther trained as an opera singer and made her professional debut in 1957 at the Royal Danish Theatre, where she would be employed for 30 years both as a singer and a dramatic actress.
In 1962, Winther won the Danish Eurovision Song Contest selection with the song "Vuggevise" ("Lullaby"), and went forward to the seventh Eurovision Song Contest, held in Luxembourg City on 18 March. "Vuggevise" finished in joint tenth place of 16 entries.
Winther became well-known to Danish audiences by many appearances in film and television, as well as singing in opera, stage musicals and revues. In 1983 she was awarded the Order of the Dannebrog for her contribution to the arts in Denmark.
Winther was married to pianist John Winther between 1960 and 1966, with two children from this marriage, and to writer and politician Hans Jørgen Lembourn from 1973 until his death in 1997.
Ellen Winther died on August 13, 2011.