Abstract: Structurally-integrated conductive conduits for rotor blades are disclosed. In one embodiment, an elongated rotor blade includes a body having a root portion and a distal portion spaced apart from the root portion, a device coupled to the body, and a conduit assembly disposed within the body and extending between the root portion and the device. The conduit assembly includes a main body assembly having at least one of a conductive lead, a fluid line, and an optical fiber disposed within a matrix material, the conduit assembly extending from the root portion to the device. In alternate embodiments, the device may comprise an actuator, a smart actuator, a piezoelectric material, an electromagnetic device, an electromechanical device, a hydraulic actuator, a pneumatic actuator, a light, and a sensor.