Major General Sir Alexander Bryce, KCH (23 January 1766 – 4 October 1832) was a British soldier and colonel-commandant in the Royal Engineers. Bryce entered the Royal Military Academy, Woolwich, as a cadet on 7 October 1782, and passed out as a second lieutenant, Royal Artillery, on 25 August 1787. In the autumn of that year he was employed with Captain (afterwards Major-general) W. Mudge in carrying out General Roy's system of triangulation for connecting the meridians of Greenwich and Paris, and in the measurement of a base of verification in Romney Marsh, particulars of which will be found in 'Phil. Trans.' 1790.