SEC
SEC or Sec may refer to:
Government
- United States Securities and Exchange Commission, U.S. federal securities regulator
- Securities and Exchange Commission (disambiguation), other securities regulators with this name
- State Electricity Commission of Victoria, Australia
- State Examinations Commission, Ireland
- State-owned Enterprises Commission, Taiwan
Sports
- Southeastern Conference, U.S. collegiate sports conference
- Southeast Conference, Wisconsin Interscholastic Athletic Association
- Speedway European Championship, motorcycle speedway competition
Science
- Saga execution coordinator, a component of the saga interaction pattern in computer science
- 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
Companies
- Samsung Electronics Co., Ltd., an electronics company
- Solar Entertainment Corporation, a Filipino media company
Places
- Seč (disambiguation), places in Central Europe
Other uses
- 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, an auditorium in the Scottish Event Campus, Glasgow
- SEC Centre, an exhibition centre in the Scottish Event Campus, Glasgow
- Secco, a musical term meaning "dry", "without resonance" or "quick"
- Second, a unit of time
- Section (typography), a subdivision of a chapter
- St Edmund's College, Ipswich
- Mercedes-Benz SEC
- Secondary Education Certificate, part of the education system in Malta