A cyborg (short for "cybernetic organism") is a being with both organic and biomechatronic body parts. The term was coined in 1960 by Manfred Clynes and Nathan S. Kline.

The term cyborg is not the same thing as bionic, biorobot or android; it applies to an organism that has restored function or enhanced abilities due to the integration of some artificial component or technology that relies on some sort of feedback. While cyborgs are commonly thought of as mammals, including humans, they might also conceivably be any kind of organism. It is hypothesized that cyborg technology will form a part of postbiological evolution, in the form of transhumanism - where people are artificially enhanced beyond their original biological characteristics.