- Class: Takao - 4 cruisers of 1927-28
- Displacement: 13,160 tons
- Dimensions: 632 (pp) 662 (oa) x 68 x 21 ft.
- Machinery: 4-shaft geared turbines, S.H.P. 133,100 = 34.25 knots
- Armor: Belt 4-5 in., deck 2 in., turrets 6 in., barbettes 6 in.
- Armament: 8-8 in. (4x2), 12-5 in. A.A. (6x2), 60-25 mm. A.A. guns;
16-24 in. T.T. (4x4); 3 aircraft
- Complement: 773
- Builder: Kawasaki, Kobe
- Laid Down: 4 Dec 1928
- Launched: 8 Nov 1930
- Completed: 30 Jun 1932
- Service: With her sisters Takao, Maya, and Chokai formed the 4th Cruiser Division, serving with the Southern Area Force covering landings in Malaya and Dutch East Indies. After refit in Japan, took part in Midway operation but did not see action. Active in Solomons campaign. Withdrawn to Japan for refit, then stationed at Truk in 1943. Atago, Takao, and Maya all damaged at Rabaul 5 Nov 1943 during the raid by aircraft from USS Saratoga
and USS Princeton. All three returned home for repairs into early 1944. Took part in the Battle of the Philippine Sea in Jun, then sent to Singapore. Sailed as part of Kurita's Center Force for Leyte Gulf. Atago was hit by four torpedoes from submarine USS Darter and sank in Palawan Passage, 23 Oct 1944, at beginning of Battle of Leyte Gulf. Maya was hit by four torpedoes from USS Dace just twenty minutes later, also sinking rapidly, while two additional torpedoes from Darter hit Takao forcing her
withdrawal to Singapore, where she sat unrepaired. Chokai carried on only to be sunk by aircraft in the action off Samar with US escort carriers and destroyers on 25 Oct 1944.