Sui
- Communication channel
- Cristiano Ronaldo
- East Asian age reckoning
- Japanese aesthetics
- Simplified user interface
- Sonic user interface
- Speleological Union of Ireland
- State University of Iowa
- Sui (state)
- Sui (surname)
- Sui County, Henan
- Sui County, Hubei
- Sui dynasty
- Sui gas field
- Sui generis
- Sui iuris
- Sui language
- Sui people
- Sui, Balochistan
- Sui, Bhiwani
- Sui, Rajasthan
- Suisun–Fairfield station
- Suizhou
- Sukhumi Babushara Airport
- Switzerland
- Ukrainian Society for Interlingua
- Unemployment insurance in the United States
- Urinary incontinence
- Wangi-wangi white-eye