S. giganteum may refer to: Saccolabium giganteum, a synonym for Rhynchostylis gigantea, an orchid species found in Myanmar, Thailand, Malaysia, Laos, Cambodia, Vietnam, Hainan China, Borneo and the Philippines Sequoiadendron giganteum, the giant sequoia, Sierra redwood or Wellingtonia, a massive tree species Sivatherium giganteum, an extinct species of giraffid that ranged throughout Africa to the Indian Subcontinent
See also Giganteum