Colonel Alexander Lechmere Mein (15 July 1854 – 30 November 1927) was a British Army officer who served with the Royal Engineers in the late 19th and early 20th centuries, spending the majority of his career in India. The only active service that he saw was during the Anglo-Afghan War in 1878 to 1880. In his youth, he was a keen amateur sportsman and played association football for the Royal Engineers, being on the winning side in the 1875 FA Cup Final.