CL2

CL2 may refer to:

• Chlorine gas, Cl₂
• the Clausen function of order 2, Cl₂
• the Clifford algebra on ${\displaystyle \mathbb {C} ^{2}}$, ${\displaystyle \operatorname {Cl} _{2}(\mathbb {C} )}$
• CAS latency 2, a rating of computer memory
• Google Calendar, a time-management web application (from a URL fragment used in early versions)
• Only Built 4 Cuban Linx II, a musical album by American hip-hop artist Raekwon
• Class 2 rated cables, in the National Electrical Code
• LPHN2, a human gene that encodes the Latrophilin-2 protein