Secu or SECU may refer to:
- Secu - a commune in Dolj County, Romania
- SECU - a common abbreviation for State Employees Credit Union
- abbreviation for the Canadian House of Commons Standing Committee on Public Safety and National Security
- SECU - an academic arm of the Southeastern Conference
- SECU (container) - Stora Enso Cargo Unit, a type of shipping container
- The ICAO airport code for Mariscal Lamar Airport in Cuenca, Ecuador
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