El paracaidismo es la técnica de lanzamiento de seres humanos desde cierta altura usando un paracaídas para amortiguar el impacto del aterrizaje, que puede realizarse desde cualquier aeronave como avión, helicóptero o globo aerostático. La disciplina del paracaidismo donde se salta de un objeto fijo es salto BASE (por sus siglas en inglés (building, antenna, span y earth). En algunos casos el paracaídas es abierto inmediatamente al salir de la aeronave u objeto fijo y en otros casos se realiza una caída libre controlada antes de realizar la apertura manual o asistida dependiendo del caso.

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Parachuting, or skydiving, is a method of transiting from a high point to Earth with the aid of gravity, involving the control of speed during the descent with the use of a parachute. It may involve more or less free-fall, a time during which the parachute has not been deployed and the body gradually accelerates to terminal velocity. Andre-Jacques Garnerin was the first to make successful descents using a canvas canopy from a small basket tethered beneath a hot-air balloon. The first intentional freefall jump with a ripcord-operated deployment is credited to Leslie Irvin in 1919. Georgia Broadwick made an earlier freefall in 1914 using improvised equipment when her static line became entangled with the aircraft's tail assembly and she cut the static line and pulled it herself. The military developed parachuting technology as a way to save aircrews from emergencies aboard balloons and aircraft in flight, and later as a way of delivering soldiers to the battlefield. Early competitions date back to the 1930s, and it became an international sport in 1952.

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