Stai is a Norwegian surname.
Stai or STAI may also refer to:
- State-Trait Anxiety Inventory
- Stai, Innlandet village and a railway station in the Innlandet county, Norway
- Stai, Smolensk Oblast , village in Smolensk Oblast, Russia
- Stai, Lyepyel District , agrotown in Belarus
See also
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