Y18 may refer to:
Train stations Hōzanji Station, in Ikoma, Nara, Japan Kishinosato Station, in Nishinari-ku, Osaka, Japan Motoyama Station (Mitoyo), in Mitoyo, Kagawa, Japan Nigata Station, in Kure, Hiroshima, Japan Touqianzhuang metro station, in Taipei, Taiwan Yūrakuchō Station, in Chiyoda, Tokyo, Japan
Other uses Y-18 Le Vallon Advanced Landing Ground in France Youth Bandy World Championship