Capi or CAPI may refer to:

Computing Common Application Programmer's Interface, LispWorks Common Lisp GUI toolkit Common ISDN Application Programming Interface, Common ISDN API Computer-assisted personal interviewing, a surveying technique that uses a computer based questionnaire Microsoft Cryptographic Application Programming Interface, an interface to a library of functions software developers can call upon for security and cryptography services Coherent Accelerator Processor Interface, a bus technology introduced in IBM's POWER8.

People Capi (footballer, born 1977), Jesús Capitán Prado, Spanish football midfielder Capi (footballer, born 1979), Jesús Tablado Feito, Spanish football forward Capi (footballer, born 1981), Manuel Borja Calvar Simón, Spanish football defender Capi (footballer, born 2006), Hugo Martínez González, Spanish football midfielder

Other uses Cash Assistance Program for Immigrants, a service for immigrants in the US not eligible for Supplemental Security Income (SSI) Capi, daily newspaper from Nagaland, India

See also Cappi Kapi (disambiguation)