Bailey could refer to:
- People
- Bailey (security), a tactical officer aboard the USS Enterprise-D
- Bailey (Admiral), head of Starbase 68
- Bailey (counselor), a 24th century Starfleet counselor
- Bailey (Deep Space 9)
- Bailey Paris, a member of the Paris family
- David Bailey, Federation ambassador to the First Federation
- Will Bailey, a 20th century boxer
- William Bailey (23rd century), a 23rd century helmsman
- William Bailey (24th century), a 24th century helmsman
- Real-world topics
- Dennis Bailey, a Ships of the Line artist
- Laura Bailey, a STO voice actor