ZyuohKing (Japanese 動物合体ジュウオウキング, Dōbutsu Gattai Jūōkingu, roughly "Animal Fusion ZyuohKing") is the primary mecha of Doubutsu Sentai Zyuohger (2016-2017), the 40th-anniversary season of the Super Sentai franchise. It belongs to the Zyuohger team led by Zyuoh Eagle (Yamato Kazakiri), alongside Zyuoh Shark, Zyuoh Lion, Zyuoh Tiger and Zyuoh Elephant. Because Zyuohger was never adapted into a Power Rangers season, ZyuohKing remained exclusive to Japan and was never released as a Power Rangers toy, neither under Bandai America nor later under Hasbro.

The series is built around cube-shaped Zyuoh Cubes (Cube Animals): compact blocks that unfold into an animal and then into a robot component. ZyuohKing is formed through the title's Doubutsu Gattai (animal fusion), combining any three of the five main cubes – Cube Eagle (No. 1), Cube Shark (No. 2), Cube Lion (No. 3), Cube Tiger (No. 4) and Cube Elephant (No. 5). Cube Eagle always serves as the head and command core in every arrangement. The default and debut configuration is ZyuohKing 1-2-3 (Eagle, Shark and Lion), which wields the King Sword and performs the "King Sword: Zyuoh Slash" finisher. Swapping the cubes produces alternate modes with different fighting styles, such as the martial-arts-oriented 1-5-4 arrangement with Elephant and Tiger and its "Elephant Kick." The defining trait is the modular cube gimmick, which lets the blocks be stacked freely.

The main toy, DX Doubutsu Gattai ZyuohKing, was made by Bandai (Japan) and released in February 2016 at a list price of roughly 7,600 yen. The set includes the three cubes Eagle, Shark and Lion (Cube 1-2-3). As is standard for modern DX Sentai mecha, it is entirely plastic (ABS/PVC) with no meaningful die-cast content. Combination is achieved by stacking the cubes; the included "Big King Sword" is inserted last to complete and lock the transformation. The finished robot is fairly compact at about 23 cm, and the transformation is deliberately simple and child-friendly. Additional Cube Animals (including Tiger and Elephant, plus later releases such as Whale, Kirin and Mogura) were sold separately to enable the alternate ZyuohKing combinations and the larger ZyuohWild.