Bios or BIOS may refer to:

• Life (in Greek, /Bios)
• Biographies, a genre of literature/media based on accounts of people's lives
• BIOS, the Basic Input/Output System of an IBM PC
• Biological Innovation for Open Society
• The British Institute of Organ Studies
• BIOS (journal), a quarterly journal of biology
• BIOS Group, a Santa Fe, New Mexico-based for-profit company that employs complex systems methodology to attempt to solve business problems
• Bios (band), a power noise group
• BIOS Faction in the Allegiance (computer game)
• BIOS is the society journal of the Tri Beta society
• BIOS British Intelligence Objectives Sub-committee
• BIOS Centre for the Study of Bioscience, Biomedicine, Biotechnology and Society at the London School of Economics, United Kingdom
• The plural of Bio

nl:Bios sk:Bios