Henry Ulick Browne, 5th Marquess of Sligo (14 March 1831 – 24 February 1913), styled Lord Henry Browne until 1903, was an Irish peer.

Browne was the fourth son of Howe Browne, 2nd Marquess of Sligo

Howe Browne, 2nd Marquess of Sligo

Howe Peter Browne, 2nd Marquess of Sligo, KP, PC, PC , , was an Irish peer and colonial governor, styled Viscount Westport until 1800 and Earl of Altamont from 1800 to 1809....

, and Lady Hester Catherine de Burgh, daughter of John de Burgh, 13th Earl of Clanricarde

John de Burgh, 13th Earl of Clanricarde

John Thomas de Burgh, 13th and 1st Earl of Clanricarde PC , styled The Honourable until 1797, was an Irish nobleman and soldier. He was made a member of the Privy Council of Ireland in 1801....

. He succeeded in the marquessate in December 1903, aged 72, on the death of his unmarried elder brother. He married Catherine Henrietta Dicken, daughter of William Stephens Dicken, on 25 October 1855. They had ten children:

• George Browne, 6th Marquess of Sligo (1856–1935)
• Catherine Elizabeth Browne (1857–1874)
• Herbert Richard Browne (1858–1890)
• Lady Edith Hester Browne (1860–1936)
• Lady Florence Marion Browne (1863–1946)
• Arthur Browne, 8th Marquess of Sligo (1867–1951)
• Terence Browne, 9th Marquess of Sligo (1873–1952)
• Lady Nora Browne (1873–1948)
• Alice Evelyn Browne (1877–?)
• Lord Alfred Eden Browne (1878 – 27 August 1918)