BDŽ series 46
The following locomotives are designated as class 46 at the Bulgarian State Railways Balgarski Darschawni Schelesnizi (BDŽ):
- BDŽ class 46 (1931) , a freight train tank locomotive with a 1'F2 'wheel arrangement used from 1931
- BDŽ-series 46 (1986) , an electric locomotive with a Co'Co 'wheel arrangement in use from 1986