PSIA
From Wikipedia, the free encyclopedia
PSIA or psia may refer to:
- Pounds per square inch absolute (including atmospheric pressure).
- Professional Ski Instructors of America, an organization offering training and certification for U.S. Ski Instructors
- Private School Interscholastic Association, a private primary school academic competition association located in Texas.
- Public Security Intelligence Agency
It may also be a misspelling of Pisa.
