Edward St. Leger (6 October 1866 - 7 September 1941), who became 6th Viscount Doneraile on 1 January 1891, was a peer, barrister and local politician in the Westminster area.
The son of the Reverend Edward Frederick St. Leger and Caroline Elizabeth née Bishop, he was born at Scotton Rectory, Lincolshire.
He was educated at Winchester College and New College, Oxford, graduating in 1889. In 1891, the year he succeeded his uncle as Viscount Doneraile, he was called to the bar at the Inner Temple.
He settled in Westminster where he became a member of the Metropolitan Asylums Board in 1899, and was the last chairman of the board from 1928-30. He was an alderman on Westminster City Council and was Mayor of Westminster in 1919-20, and was chairman of the City of Westminster Board of Guardians from 1926-1927.
An enthusiastic skater, he was president of the National Skating Association.
He died unmarried in 1941 and was succeeded in the viscountcy by his younger brother.