SEC

• Solar Entertainment Corporation, a Filipino media company
• Samsung Electronics Co., Ltd., an electronics company

• Securities and Exchange Commission (disambiguation)
• U.S. Securities and Exchange Commission
• State Electricity Commission of Victoria, Australia
• State Examinations Commission, Ireland
• State-owned Enterprises Commission, Taiwan

• Saga execution coordinator, a component of the saga interaction pattern in computer science
• {{section link|Bacterial secretion system|Sec system}}, the Sec secretion system in bacteria
• Secant function, in mathematics
• Size-exclusion chromatography
• Space Weather Prediction Center, formerly Space Environment Center
• Selenocysteine, an amino acid
• Secondary Electron Conduction Tube, part of the Apollo TV camera
• SEC experiment (Scattering Experiment Chambers) at CERN

• Southeastern Conference, one of the major U.S. collegiate sports conferences
• Southeast Conference in the Wisconsin Interscholastic Athletic Association
• Speedway European Championship, motorcycle speedway competition

• Seč (disambiguation), places in Central Europe

• Dalek Sec, a Doctor Who character
• Scottish Episcopal Church
• Sec (wine), a French term used to indicate the sweetness level of a wine
• SEC Armadillo (part of Scottish Event Campus), an auditorium located near the River Clyde, in Glasgow, Scotland.
• SEC Centre (part of Scottish Event Campus), Scotland's largest exhibition centre, located in Glasgow, Scotland.
• Secco, a musical term meaning "dry", "without resonance" or "quick"
• Second, a unit of time
• Section (typography), a subdivision, especially of a chapter, in books and documents
• St Edmund's College, Ipswich
• Mercedes-Benz SEC
• Secondary Education Certificate, part of the education system in Malta

• Sxc (disambiguation)
• Section (disambiguation)

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