Harold Alexander De Barbizon Sloan (25 August 1882 – 21 January 1917) was an Irish soccer player at the beginning of the 20th century. Sloan represented Bohemians during his career in the Irish League. A forward, he was one of the main stars in the early Bohemian history. He scored the very first goal ever at Dalymount Park in a 4–2 win over Shelbourne on 7 September 1901. He won 8 full international caps for Ireland and once scored a hat-trick for them against Wales in a 4–4 draw in April 1906.