PKI may refer to:
* Partai Komunis Indonesia, the
Communist Party of Indonesia
*
Peter Kiewit Institute
The Peter Kiewit Institute is a facility in Omaha, Nebraska, United States which houses academic programs from the University of Nebraska–Lincoln College of Engineering.
Founded in 1996 in partnership with the University of Nebraska–Lincoln ...
, an Information Technology and Engineering school of the University of Nebraska system
*
Protein kinase inhibitor, a type of enzyme inhibitor that specifically blocks the action of one or more protein kinases
*
Public key infrastructure, a computer security technology
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