Y23 may refer to:
Train stations Akitsu Station (Hiroshima), in Higashihiroshima, Hiroshima, Japan Iyo-Mishima Station, in Shikokuchūō, Ehime, Japan Shimizusawa Station, in Yūbari, Hokkaidō, Japan Tatsumi Station, in Kōtō, Tokyo, Japan
Other uses Bandy World Championship Y-23 Chetek Municipal–Southworth Airport, in Wisconsin, United States Y-23 Valence Advanced Landing Ground, now Valence-Chabeuil Airport in France