Sarah Edith Wynne (Eos Cymru) (11 March 1842 – 24 January 1897) was a Welsh operatic soprano and concert singer.

She studied singing with Richard Scarisbrick in Liverpool and Pinsuti at the Royal Academy of Music, where she was Westmoreland Scholar from 1863 to 1864.

Wynne sang in the United States with the Janet and John Patey and Charles Santley in 1871-1872, and at the Boston Handel Festival of 1874.

[5] They had two daughters, Isabel Myfanwy, who became a musician in adulthood,[2] and Gwladys Edith Victoria, who died soon after birth in 1878.

Sarah Edith Wynne Agabeg died at her home in London on 24 January 1897, aged 54 years,[6][7] and was buried in Hampstead Cemetery.