QNX is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market. The product was originally developed by Canadian company QNX Software Systems with founders Gordon Bell and Dan Dodge, students at the University of Waterloo in 1980. QNX now powers the BlackBerry PlayBook and is the core operating system used in BlackBerry 10 as well as the QNX Car Platform.

The hub-and-spoke architecture of QNX allows for many applications to run simultaneously, securely and stably. The real-time, POSIX-compliant operating system was owned by Harman Technologies before being acquired by BlackBerry, and continues to be used in integrated automotive systems and industrial applications.