O18 or O-18 may refer to:

Places

Airports

* Hanford Municipal Airport, in California, United States; formerly assigned FAA LID O18 * Buzzards Roost Airport (FAA LID O18), Inola, Oklahoma, USA; see List of airports in Oklahoma

Rail stations

* Tondabayashi Station (station code O18), Tondabayashi, Osaka Prefecture, Japan * Xinzhuang metro station (station code O18), Xinzhuang District, New Taipei, Taiwan

Literature

* Naos (hieroglyph) (Gardiner code O18), an Egyptian hieroglyphic representing a shrine * Minuscule 442 (Soden code O¹⁸), a Greek New Testament minuscule manuscript * Minuscule 441 (Soden code O¹⁸), a Greek New Testament minuscule manuscript

Other uses

* Curtiss O-18 Falcon, an observation aircraft of the United States Army Air Corps * Oxygen-18, an isotope of oxygen * Delta-O-18, a measure of the ratio of stable isotopes 18O:16O (oxygen-18:oxygen-16) * MSC(O)-18, minesweeper built for the United States Navy during World War II * over age 18 (O18), an age grouping, such as found in sports

Places

Airports

Rail stations

Literature

Other uses

See also