Henry Campbell Bruce, 2nd Baron Aberdare (19 June 1851 - 14 December 1914) was a British soldier, who was killed in action during the early years of World War I.
Bruce, the eldest son of Henry Bruce, 1st Baron Aberdare (who had served as Home Secretary) was educated at the Rugby School and at the Friedrich Wilhelm University in Berlin. His military career, by virtue of his status in the nobility, was started early: he became honorary colonel of the 5th Battalion, Welsh Regiment after leaving Berlin, and later became lieutenant colonel of the 3rd Volunteer Battalion . Acceeding to the peerage (as Baron Aberdare) in 1895, he served as President of University College, President of the National Museum in Wales and as Vice Lieutenant of Glamorgan. He was then commissioned a captain in the 3rd Battalion, Royal Scots, but was killed in action soon after World War I broke out.