PKI

PKI may refer to:

• Kings Island, an amusement park formerly known as Paramount's Kings Island
• Partai Komunis Indonesia, the Communist Party of Indonesia
• Peter Kiewit Institute, 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