Y15 may refer to:
Train stations Akiaga Station, in Kure, Hiroshima, Japan Banxin metro station, in Taipei, Taiwan Kōjimachi Station, in Chiyoda, Tokyo, Japan Mino Station, in Mitoyo, Kagawa, Japan Namba Station, in Chūō-ku, Osaka, Japan
Other uses , with a Greek letter upsilon Y-15 Aix/Les Milles Advanced Landing Ground, now Aix-en-Provence Aerodrome in France Youth Bandy World Championship Y15, for boys' teams up to age 15 Y15, 1,2,4,5-benzenetetraamine tetrahydrochloride, an FAK inhibitor intended for cancer