Albert Horatio McElroy (14 February 1915 – 13 March 1975) was a minister of religion and politician in Northern Ireland. Born in Glasgow, McElroy studied at Trinity College Dublin, then at Manchester College in Oxford (since 1996 known as Harris Manchester College). At the 1950 UK general election, McElroy stood for the NILP in North Down, receiving 20.6% of the votes cast, taking him to a distant second place. He stood again in the 1951 general election, but fell back to 18.6%.