The B 81500 is a class of bi-mode multiple units built by Bombardier for SNCF and used on the TER network in France. They are primarily used on suburban and regional services. It has been in operation since 2005 on the TER Aquitaine, TER Bourgogne, TER Centre, TER Champagne-Ardenne, TER Languedoc-Roussillon, TER Limousin, TER Midi-Pyrénées, TER PACA, TER Pays de la Loire, and TER Rhône-Alpes lines.