ASEC

ASEC or asec may refer to:

• Absolute size-exclusion chromatography
• asec or arcsecant, an inverse trigonometric function
• Arcseconds or seconds of arc, a unit of angle
• .asec, the file extension of an Android secure encrypted file

• ASEC Mimosas, a football club
• ASEC Ndiambour, a football club
• Alberta Students' Executive Council, an organization of post-secondary student leaders in Alberta, Canada
• Action Sports Environmental Coalition, a nonprofit organization co-founded by Bob Burnquist

• Annual Social and Economic Supplement, a supplement to the Current Population Survey from the United States Census Bureau