9000 may refer to:
9000 (number) The last year of the 9th millennium, an exceptional common year starting on Wednesday
Business
ISO 9000, a family of standards for quality management systems
TL 9000, a quality management system
Entertainment
BFG 9000, a fictional weapon
HAL 9000, a fictional computer
Technology
IBM ES/9000, a mainframe computer
IBM System 9000, a family of microcomputers
HP 9000, a family of workstation and server computers
VAX 9000, a mainframe computer
Nokia 9000 Communicator, a smart phone introduced in 1996
ATI Radeon 9000, a computer graphics card series
Transport
9000 series (disambiguation), Japanese, Korean, Latin America and Spanish train types Saab 9000, Saab's executive car, produced 1985–98