Henry Meredith Leaf, DSO (18 October 1862 – 23 April 1931) was a British rackets player who competed in the 1908 Summer Olympics.

In the men's doubles competition, he won the bronze medal together with Evan Noel.

Their role was to supplement the regular Royal Engineers in wartime by operating searchlights to defend major ports in conjunction with minefields controlled by Volunteer companies of Submarine Miners, RE.

Early in the war, Colonel Robert Baden-Powell improvised searchlights to deter night attacks during the Siege of Mafeking.

[3] Leaf was granted the temporary rank of Captain in the Army on 17 March 1900,[4] and served with detachment, which was in South Africa from April to October 1900 in the Transvaal and Orange Free State.