Class 15

Class 15 may refer to:


 * A15-class container ship
 * Belgian Railways Class 15
 * British Rail Class 15
 * DR Class V 15
 * DRG Class 15, which was used twice by the Deutsche Reichsbahn in its classification of steam locomotives:
 * In 1925 for the Bavarian S 2/6 express locomotive
 * In 1938 following the Anschluss of Austria for the Austrian Class 10 of the Federal Railway of Austria (BBÖ)
 * GER Class G15
 * GER Class M15
 * I-15-class submarine
 * JNR Class DD15
 * JNR Class DE15
 * JNR Class ED15
 * LSWR D15 class
 * LSWR H15 class
 * LSWR N15 class
 * LSWR S15 class
 * M15-class monitor
 * NSB El 15
 * PKP class SM15
 * Rhodesia Railways 15th class
 * South African Class 15F 4-8-2
 * South African Class NG15 2-8-2
 * SR N15X class