Self-propelled
Self-propelled may refer to

 Human-powered transport, humans moving themselves (and their cargo) via their own muscle energy
 Machines that power their own movement: 
 Automobile (from auto- + mobile, "self-moving")
 Locomotive (from loco- + motive, "moving from its current place")
 Mechanized vehicle, armoured self-propelled platform for use in mechanized warfare
 Multiple units, self-propelled train carriages
 Self-propelled artillery
 Self-propelled gun
 Self-propelled anti-aircraft weapon
 Self-propelled anti-tank gun (aka tank destroyer)
 Anti-tank missile carrier, a self-propelled anti-tank missile system
 Assault gun, a self-propelled infantry support gun
 Mortar carrier, a self-propelled mortar
 Self-propelled modular transporter
 Leonardo's self-propelled cart
 Self-propelled barge T-36
 Self-propelled particles, a model for studying the motion of swarms