IX may refer to:
Ixodes holocyclus, commonly known as the Australian paralysis tick, is one of about 75 species of Australian tick fauna and is considered the most medically important.
Iximche (/iʃimˈtʃe/) (or Iximché using Spanish orthography) is a Pre-Columbian Mesoamerican archaeological site in the western highlands of Guatemala.
Ixkun (Ixcún or Ixkún in Spanish orthography) is a pre-Columbian Maya archaeological site, situated in the Petén Basin region of the southern Maya lowlands.
Ixnay on the Hombre is the fourth studio album by American punk rock band The Offspring. Produced by Dave Jerden, the album was released on February 4, 1997 through Columbia Records (their former label Epitaph released it in Europe).
Ixtlán del Rio is an archaeological site located in the Ixtlán del Rio municipality, on the south west region of the Nayarit State, Mexico.
IX Corps was a corps of the United States Army. For most of its operational history, IX Corps was headquartered in or around Japan and subordinate to US Army commands in the Far East.
Ixcateopan is an archaeological site located in the town and municipality of Ixcateopan de Cuauhtémoc, 36 kilometers from Taxco, in the isolated and rugged mountains of the northern part of Guerrero state, Mexico.
Ixodes scapularis is commonly known as the deer tick or blacklegged tick (although some people reserve the latter term for Ixodes pacificus, which is found on the West Coast of the USA), and in some parts of the USA as the bear tick.