- Class: Fuso - 2 battleships of 1911-13
- Displacement: 34,700 tons
- Dimensions: 630 (pp) 698 (oa) x 100.5 x 31.75 ft.
- Machinery: 4-shaft geared turbines, S.H.P. 76,889 = 24.75 knots
- Armor: Main belt 4-5 in. (bow), 8-12 in. (amid), 4 in. (aft), deck 1.25-2 in., turrets 8-12 in., C.T. 6 & 12 in.
- Armament: 12-14 in. (6x2), 14-6 in. (14x1), 8-5 in. (4x2), 16-25 mm. A.A. guns; 3 aircraft
- Complement: 1,400
- Builder: Yokosuka Navy Yard
- Laid down: 20 Nov 1913
- Launched: 3 Nov 1915
- Completed: 31 Mar 1917
- Service: Yamashiro and sister Fuso were the first battleships built in Japan to use both Japanese material and weapons. Yamashiro and Fuso were both rebuilt during 1930s, including lengthening of forecastle, addition of torpedo blisters, pagoda masts, new oil-burning boilers, increased power and speed, forward funnel deleted. They saw little action during World War II prior to being sunk at Surigao Strait 25 Oct 1944 in a night action with US battleships, cruisers, and destroyers by gunfire and torpedoes.