3000 class or Class 3000 may refer to:
Class 3000 (standard), cleanroom standard 3000 class railcar, in Adelaide, South Australia Bangladesh Railway Class 3000, diesel-electric locomotives CFL Class 3000, electric locomotives GWR 3000 Class, 2-8-0 steam locomotives MRTC 3000 class, Manila light rail vehicles NIR Class 3000, diesel multiple units