CSE can refer to:

In computing:

Computer Systems Engineering
Common subexpression elimination, a compiler optimization technique
CAMEL Service Environment
Client Side Extensions, a concept within Group Policies processing in a Microsoft Windows 2000/2003 Active Directory
In business:

Copenhagen Stock Exchange, a stock exchange under OMX
Colombo Stock Exchange, a stock exchange in Sri Lanka
Comparison Shopping Engine, an Internet-based comparison shopping service
CSE Education Systems, a supplier of ICT equipment for education in the UK
CSE Global, a systems integration company
CSE, Common Shareholders Equity
Other:

Committee on Special Education, a school committee that determines special accommodations for students
Communications Security Establishment, intelligence agency of the Canadian government
Council of Science Editors, publisher of the CBE style
Certificate of Secondary Education, an UK examination
Combined spinal and epidural, anaesthes ...more

Computer Science Engineering