Douglas Haig McIntosh FRSE FRMS OBE (1917–1993) was a 20th-century Scottish meteorologist.
McIntoch was born in Leven, Fife on 9 September 1917, and, in what was perhaps a patriotic fever during the First World War, named after Douglas Haig, Lord Haig, the commanding officer of the British Army.
Interrupted by the Second World War he became a meteorological forecaster for RAF Coastal Command in Scotland before being posted to Calcutta in India as Senior Meteorological Officer.
In 1944 he became Deputy Chief Meteorological Officer for Southeast Asia, with the notional rank of Squadron Leader.
His proposers were C. T. R. Wilson, James Paton, Mervyn A. Ellison, and Sir Ernest Wedderburn.