SC-40

SC-40 may refer to:

• ISO/IEC JTC 1/SC 40, a standardization subcommittee of the ISO/IEC JTC 1 on IT Service Management and IT Governance
• SC-40, a computer developed by Systems Concepts
• Template:USS, a United States Navy submarine chaser commissioned in 1918 and sold in 1924
• Scandium-40 (Sc-40 or ⁴⁰Sc), an isotope of scandium