Sea Dragon or seadragon may refer to: Animals Leafy seadragon (Phycodurus eques) Phyllopteryx genus Common seadragon or weedy seadragon (Phyllopteryx taeniolatus) Ruby seadragon (Phyllopteryx dewysea) Glaucus atlanticus, a sea slug Military Operation Sea Dragon (Vietnam War), a military operation MH-53E Sea Dragon, a helicopter USS Seadragon, two ships of the US Navy Kairyū-class submarine ("Sea Dragon"), a class of Japanese submarines Blohm & Voss BV 138B, "Seedrache (Sea Dragon)", Luftwaffe's main long-range maritime reconnaissance flying boat Sea Dragon, China's People's Liberation Navy commando force Other uses Sea Dragon (rocket), a 1960's proposed American super heavy lift two stage sea launched rocket Sea Dragon (roller coaster) Sea Dragon-class ROV, a remotely operated underwater vehicle developed by China Sea Dragon (video game), is a horizontally scrolling shooter for the TRS-80 computer, written by Wayne Westmoreland and Terry Gilman, and released in 1982 by Adventure International Sea serpent, a mythical sea creature Seadragon, a zooming technology by Seadragon Software Sea Dragon, a fictional creature in the Majipoor novel series Sea Dragon Leviathan, an organism in Subnautica Ichthyosaur Francisco José do Nascimento (1839-1914), Brazilian maritime pilot and abolitionist known as "Dragão do Mar" (Sea Dragon) See also Sea Monsters (disambiguation) Dragonfish (disambiguation) The Dragon in the Sea, a novel by Frank Herbert