Cert
- CERT C Coding Standard
- CERT Coordination Center
- CERT Group of Companies
- Carbon Emission Reduction Target
- Ceirt
- Cert pool
- Certificate (disambiguation)
- Certiorari
- Certiorari before judgment
- Certs
- Community emergency response team
- Computer emergency response team
- Correctional emergency response team
- Council of Education, Recruitment and Training
- Council of Energy Resource Tribes
- Sert (disambiguation)
- United States Computer Emergency Readiness Team