1. Computers

2. Roads

3. Sports and games

4. Music

5. Other

4040, 40-40 or 40/40 may refer to:

• The year 4040 in the 5th millennium

Computers

• Intel 4040, a microprocessor
• Commodore 4040, a model of floppy disk drive

Roads

• County Road 4040 (Volusia County, Florida), a historic road
• A4040 road, a road in Birmingham, England

Sports and games

• 40–40 club, a term in baseball
• The 40/40 Club, a sports bar chain
• Forty forty, a children's game

Music

• 40/40 (The Carpenters album)
• The Best Selection (Olivia Newton-John album)

Other

• 4040 Purcell, an asteroid

• Colla albescens
• Colla, Algeria
• Colla aminula
• Colla amoena
• Collab
• Collabera
• Collabieae
• CollabMobile
• Collabora Ltd.
• Collaborate: The Art of We
• Collaboration cloud
• Collaboration for AIDS Vaccine Discovery
• Collaboration (George Benson and Earl Klugh album)
• Collaboration (Helen Merrill and Gil Evans album)
• Collaboration horizontale
• Collaboration (Modern Jazz Quartet and Laurindo Almeida album)
• Collaborations 3
• Collaborations Don't Work
• Collaborations of Shakespeare
• Collaborations (Ravi Shankar and George Harrison album)
• Collaboration West
• Collaboration with the Nazis
• Collaborative Arts Project 21
• Collaborative Arts Theatre
• Collaborative bargaining