Smart
- International Association of Sheet Metal, Air, Rail and Transportation Workers
- S-Mart
- SMART (Malaysia)
- SMART (missile)
- SMART Defense Scholarship Program
- SMART Information Retrieval System
- SMART Recovery
- SMART Tunnel
- SMART criteria
- SMART-1
- SMART-R
- SMArt 155
- SMart
- Scandinavian Multi Access Reservations for Travel Agents
- Self-Monitoring, Analysis, and Reporting Technology
- Sikh Mediawatch and Resource Task Force
- Simple Modular Architecture Research Tool
- Small Missions for Advanced Research in Technology
- Small firms' Merit Award for Research and Technology
- Smart (Hey! Say! JUMP album)
- Smart (Hotels.com)
- Smart (Sleeper album)
- Smart (advertising agency)
- Smart (cigarette)
- Smart (drink)
- Smart (marque)
- Smart (song)
- Smart (surname)
- Smart 1
- Smart 3
- Smart 5
- Smart Axiata
- Smart Communications
- Smart Museum of Art
- Smart Package Manager
- Smart Scotland
- Smart Technologies
- Smart Telecom
- Smart Telecom (Uganda)
- Smart device
- SmartCell
- Smarts (disambiguation)
- Smartt (disambiguation)
- Smarty (disambiguation)
- Snart (disambiguation)
- Sonoma–Marin Area Rail Transit
- South Metro Area Regional Transit
- Southern Minnesota Area Rural Transit
- Starkville MSU Area Rapid Transit
- Start Making A Reader Today
- Studies in Medieval and Renaissance Teaching
- Suburban Mobility Authority for Regional Transportation