Henry Alexander Douglas (22 February 1821 – 13 December 1875)^[1] was the third Bishop of Bombay from 1869 to 1875.^[2]

Born into a noble family^[3] he was a son of Henry Alexander Douglas of Lockerbie and Elizabeth Dalzell, who both died in 1837. Among his siblings were John Douglas, 7th Premier of Queensland and Robert Johnstone-Douglas (father of Arthur Johnstone-Douglas). His father was the third son of Sir William Douglas, 4th Baronet of Kelhead, and was a brother of the sixth and seventh Marquesses of Queensberry.^[4]

Douglas was educated at Sherborne and Balliol College, Oxford.^[5]

He was Vicar of Abbotsley (1849-55), then Dean of Cape Town before his elevation to the episcopate, he was a "moderate high churchman".^[1] He died on 13 December 1875 and his papers published posthumously.^{[clarification needed][6]}

His successor as Dean of Cape Town was a long serving Charles Barnett-Clarke.^[4]

On 20 November 1849, Douglas married Eliza Hoskins, daughter of James Hoskins. Together, they were the parents of:^[4]

• Margaret Douglas (c. 1854–1943), who died unmarried.^[4]
• Catherine Mary Grey Douglas (c. 1857–1942), who married the Rev. Francis Ainger in 1894.^[4]
• Archibald Charles Douglas (1861–1939), who married Betty McClelland, a daughter of Andrew Simpson McClelland, in 1896.^[4]
• Katherine Helen Douglas (1864–1953), who died unmarried.^[4]

Douglas died on 13 December 1875 at age 54.^[4]