CSGN can mean:
- Cyber Sports Gaming Network; An online gaming community/network for semi professional gamers.
- The stock ticker symbol for Credit Suisse on the SWX Swiss Stock Exchange
- Cruiser Strike Guided-missile Nuclear – the US Navy's strike cruiser proposal
- Sign function for real and complex expressions
- Central Scotland Green Network; A national development which aims to make a significant contribution to Scotland's sustainable economic development.