T23 may refer to:
Aviation Aerotec T-23, a Brazilian military trainer Albany Municipal Airport (Texas), in Shackelford County, Texas, United States Junkers T 23, a German experimental trainer Slingsby T.23 Kite 1A, a British glider
Rail and transit Rolling stock SJ T23, a Swedish locomotive WEG T 23, a German railbus
Stations Nishi-Funabashi Station, in Funabashi, Chiba, Japan Tanimachi Yonchōme Station, in Chūō-ku, Osaka, Japan Yashima Station (Kagawa), in Takamatsu, Kagawa, Japan
Ships and boats Columbia T-23, an American sailboat
Other uses Cooper T23, a British racing car T23 Medium Tank, an American prototype tank T-23 Tankette, a Soviet tank T23 road (Tanzania), a road in Tanzania ThinkPad T23, a notebook computer