SLI may refer to:
Science and technology Safe Load Indicator, in cranes SLI battery, used in automotives Space Launch Initiative, a US project Specific language impairment, a medical diagnosis Symmetric level-index arithmetic, in mathematics
Computing Scalable Link Interface, for connecting multiple Nvidia video cards Scan-Line Interleave, for connecting multiple 3dfx video cards Service level indicator, a measure performance from a service provider
Organizations SAP Labs India, the Indian subsidiary of SAP AG SLI Systems, a software company in New Zealand Sylvania Lighting International Southwestern Louisiana Institute, of Liberal and Technical Learning, US Somerset Light Infantry, a former regiment in the British Army
Other uses Sensory Logical Introvert, a type in the socionics pseudoscientific theory Swiss Leader Index, a market index Street light interference, a pseudoscientific idea Supplemental Liability Insurance, for car rental