Sure
- British Overseas Territories
- Crown Dependencies
- Sauer
- Seemingly unrelated regressions
- Series of Unsurprising Results in Economics
- Shure
- Stein's unbiased risk estimate
- Suhre
- Support to mitigate unemployment risks in an emergency
- Sure (Every Little Thing song)
- Sure (Take That song)
- Sure (brand)
- Sure (company)
- Telephone company